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List of Biomaterial Fossil Papers
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Peer-reviewed journal articles that descibe biological material including tissue and DNA still inside fossils.DOI: 10.13140/RG.2.2.10126.61766researchgate.net/project/biomaterial-fossils-list-at-bflistrsrorgbflist.rsr.org
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Brian Thomas, Ph.D. icr.org[tinyurl.com/4htm54w9] see also: icr.org/fresh-fossilsicr.org/brian_thomas
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Joel Tay, Th.M.creation.comT. rex:
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Biomaterial "aged" 250M+ years in red.
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#YearDescription (gray cells for dinosaur remains)Conv. AgeReferenceLinkNotes / Excerpts (papers do not qualify for this page if they report only soft tissue imprints or permineralization; they must document extant endogenous biological materal) Vol (Issue), pp, DOI, etc.Dinosaur papers:
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1302025T rex, B can, Tri blood vessels65-80MYSchweitzer et al. ...vascular remains from Mesozoic Nat Sci Repshttps://www.nature.com/articles/s41598-025-85497-y
"We were also able to eliminate modern bacterial biofilm as the primary source of the vessel-like structures..."
dino
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1292025Plesiosaur skin hydrocarbons183MYMarx, M. Skin, scales...Plesiosaur. Curr Biolhttps://www.cell.com/current-biology/fulltext/S0960-9822(25)00001-6#fig1
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1282025Edmondosaurus collagen, hydroxyproline68MYTuinstra et al. ...Endogenous Collagen in Edmontosaurus... Anal Chemhttps://pubs.acs.org/doi/10.1021/acs.analchem.4c03115#dino
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1272024Triceratops nerve filament70MYCruz, Armitage. Soft Tissue Permanence...from Hell Creek. Microscopy & Mchrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://watermark.silverchair.com/ozae044.998.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAABVEwggVNBgkqhkiG9w0BBwagggU-MIIFOgIBADCCBTMGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMaTFcs9HFF2cR7alSAgEQgIIFBJJ5KA8lSNhbPLIU6pTjA_mWJrYU-9tAWNhZiNHQAWTrUii4MaiahnMk859MqyVVQ55cL03U9P-csLT7kJ7jPh4sBKX3dvWrSWf3En_7enfzvYK_IR8Ni4WI0QJAo1XYiSUwN_-uVUc2CFucO407SHOZAO_Uven4X-hlB46qAsOVUux49vaN5bIdGyYDlvf2-z4ip1410rsijwiFKOXwCiedchKP-Vhl7PXAP_GjDTJlj5YmwylnzL_ijcId-dMjw5oXZkjb-DEoR11QLqd4J06w7FP0gGVLV4YQvxbLf9NhVxBL2j6sockcqZ4tnbFU1D3O_78tF-PrTr02sUjRcICGD3_Zj7c0CHgatpGZnfw68yNVivI5xwtoyXNIrASBLvZ8q4GCalEqPeq-AauvIWoYJIzqtwXANGNHYT80NQtRhY-Rls0rXuaKVkIFf3kqDq_PFg4IommgWNAm3c0kLp7I5g8m94eqFZooY7YZEmq2V-oaKyLIPcITmzEFgEVfK3B1RNn4eniZMP_jEozDk7mAGLfwNLYri5DqPqJPM88AJ6Bz0nHEQCblunis5OMPTUUfDL8VTj4uRWd0BSCR1IgddvNzpwSeY2yMflAy00yS1cl2NvDBw1WS2-7u6gC2nV3vt20VyMDHgrctWeffSQTKyqXJQdcR_FCCkNQh9PjEDZEA-XXNxwl6MDuZfGvdibRTi-fpiLGH8QbDltDpxDZUMnXDuk_lZn5CtI8er1YaRACuNIX8oemkWzhh1pvKXW1MzXcyfNAxuMc3iNppapPWtnpQ-sMXgmmeCNtcaiL9y0YkvkQeCZ2JlwuJpGUo6BZnv0neTW3Cgwmw-2v_E38nX-oIAEqDuta_JGPK6vuh92KfC_joqkbGH_BENOIrwg5VikmvizuO9wtvwV03ZPVNgRn0TjgxN2ZcFVpVXU4n6M5wo3ykBeE5yQHC4mL-ksfRRxt99TvZkXZJG4xZ6DrhqB6MHD-UP988K-InQVDVRQ1xN0OSxneCTjVLCtsMc8FxC1BlcoeK3FYRiZutH_tvFfmmj2hsGK2eFrm185YTmX6LPnmKjY3GHZtlQgY2cKt4V43ICDwnVgPljYe14k9Ebp8tXAlphi-sGdsFCo1TyccXYRgUYmBAgdXBU2tqUOIFLt3saw88o9ECGMvnzhxOwRt_IM3lv4LaJlco3_0JgmYGqLgVmTo_ib_-DWsPUqmFowvajZE6LCBrH869KbiNb0w9EOc6W-ruxADytg7VTnpmMno1ttffH4DE34Q5JdTl69RN8W2iF4tMtCrWN5t9G2PvuowRJVImVnux6Ayt4iZV_ndf5KRnr8oL3B74rJMxK4glO-263XKSxzAiZQTR-Ko_EKRolGHA80d2TuIYBoK0JzaICC711gNpRttyheCT2KxxuTG3--KYHRq6bfNIsAEhDm883dZaYGNLi7LqTTntBG9rU1LXSk9OEGJbMTyjuHMlVbOh-oXcD4Mz5oP9kJ1ZERjwhlZGCH4noCdbMilyqbavjW2y0oLqiVzYZklzPMtO6rT0kmmhXfr6e0h6WFrVeYWir19VDHwlHVLp68mhIUPm6Pvz2MmT7Ym24LY15wajwInzqH-PZyfJxq7uxdekmPSutCb99bcl87QyIBWqyeYmTUbkYSYBPbIyBy0O1OXcjW3d5ENdRdI-8T_WZy-BAukq0_QCQdOjVRvxzaEapg
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1262023Sinornithosaurus feather keratin120MYSlater et al. Preservation of corneous B-proteins in...Feathers. Nat Ecol Evolhttps://www.ucc.ie/en/sefs/news/2023/dinosaur-feathers-reveal-traces-of-ancient-proteins.html"...spectra for feathers from the archaic bird Confuciusornic (Jehol biota, Cretaceous, NE China) show strong, distinct peaks for cystine, cysteine and especially cysteic acid.". 'Feathers' from Sinornithosaurus and Confuciusornisdino
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1252022Dreadnaughtus blood vessels75MYSchroeter et al. Soft-Tissue...of Dreadnoughtus...MDPI Biology.
https://www.mdpi.com/2079-7737/11/8/1158
"Thus, the hypothesis that the collagen I signal we have retrieved from D. schrani is of exogenous origin is not supported."dino
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1242022Turtle blood vessels and osteocytes65MYVoegele et al. Soft tissue and biomolecular preservation..., Biologyhttps://www.mdpi.com/2079-7737/11/8/1161"As osteocytes were found only in fossil samples and still embedded within bony tissues, it is parsimonious to infer that these structures originated from the fossil material and not the environment."doi.org/10.1038/s41559-023-02177-8
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1232021Caudipteryx chromatin/DNA125MYZheng et al. Nuclear preservation in the cartilage of Caudipteryx, Comm Biolnature.com/articles/s42003-021-02627-8Caudipteryx chromatin (positive H&E stain for DNA). "[T]he chromatin threads... in Caudipteryx were identified specifically in a non-ironized cell, this suggest iron may not always play a role in cellular nor nuclear preservation."icr.org/article/13073/22:45
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1222021Parts of proteins in titanosaur eggshell~70MYDhiman et al. Protein fragments in late Cretaceous eggshell, Paleontologyonlinelibrary.wiley.com/doi/pdf/10.1111/pala.12565"...we provide incontrovertible evidence for the preservation of proteinaceous moieties in Maastrichtian dinosaur eggshell using pyrolysis-GC9GCTOFMS."7/13/2021:1-11dino
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1212021Nerve fragments, sheath, from Triceratops bone65MYArmitage, First Report of Triceratops Occipital Condyle Nerves, Microsc Todaycambridge.org/core/journals/microscopy-today/article/first-report-of-peripheral-nerves-in-bone-from-triceratops-horridus-occipital-condyle/AE0FA022206E67ED3B53A24A9071967D"In this study we provide evidence of nerve fragments, characterized by a double helical wrapping of collagen fibers, from a Triceratops condyle collected at the Hell Creek Formation, MT."29(2):20-25dino
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1202020Edmontosaurus Type I collagen70MTUllman et al. Molecular tests...for Biomolecular Preservation. Nat Sci Rep'shttps://www.nature.com/articles/s41598-020-72648-6
"ABC extracts of Edmontosaurus fibula SRHS-DU-231 incubated with anti-chicken collagen I antibodies (see Supporting Information) yielded absorbance values over 500% those of associated sediment "
dino
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1192020Mongolemys osteocytes, blood vessels 80MYCadena, Edwin-Alberto. In situ SEM/EDS of soft tissues in 3 fossil turtleshttps://peerj.com/articles/9833/
"For the first time, I herein report the preservation of osteoblasts-like in fossil vertebrates, particularly in the Messel Pit turtle A. crassesculpta"
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1182020Dino eggshell peptide bonds and chelating ligands200MYNorell, Wiemann, et al. The first dinosaur egg was soft, Naturenature.com/articles/s41586-020-2412-8"Hard eggshells preserve PFPs still-intact peptide bonds and contain abundant chelating ligands"; PFP, protein fossilization products, is a term Wiemann, Yang, & Norell introduced in 2018583:406–410dino
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1172020Hypacrosaurus cartilage; apparent chromosomes75MYBailleul, Schweitzer et al. Evidence of proteins, chromosomes, DNA, NS Revacademic.oup.com/nsr/advance-article/doi/10.1093/nsr/nwz206/5762999"Isolated [hadrosaur] chondrocytes... positive response to two DNA assays"; "Collagen II is not produced by microbes"; In supplemental material: "chromosomes are very clear" doi.org/10.1093/nsr/nwz206dino
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1162020Triceratops blood clots, veins, valves, nerve fibers65MYArmitage, Solliday, Dinosaur blood clots in vessel canals, Microscopy Todaycambridge.org/core/journals/microscopy-today/article/uv-autofluorescence-microscopy-of-dinosaur-bone-reveals-encapsulation-of-blood-clots-within-vessel-canals/8762E671960898DAC303973A5A2A93F6"dinosaur neurovascular bundles travel as a triad of veins, vessels, and nerve fibers, as in other vertebrates." Re: Schweitzer and heme, "free iron was unavailable, at least in these... bones"28(5):30-38 Sept 2020 dino
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1152019Hadrosaur eumelanin, blood vessel, osteocytes66MYFabbri, Wieman. et al., Three-dimensional soft tissue, Palaeontologyhttps://onlinelibrary.wiley.com/doi/full/10.1111/pala.12470?af=R3D-preserved dark brown eumelanin-rich granules from Hadrosaur skin (possibly grey skin), blood vessel fragments, osteocytes. 63(2):185–193, Mar 2020.dino
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1142019Permian marker plant's lignin biopolymers ~255MYTewari et al. Biomarker signatures of Glossopteris plant. Palaeogeography PPsciencedirect.com/science/article/abs/pii/S0031018218300890?via%3Dihub531, Part B
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1132019T. rex cortical bone blood vessel structures66MYBoatman, Schweitzer et al. Tissue and protein preserved in T. rex, N Sci Repnature.com/articles/s41598-019-51680-1Full title: "Mechanisms of soft tissue and protein preservation in Tyrannosaurus rex." Preemptive criticism: rsr.org/biomaterial-fossil-proposed-mechanismsSR9:15675dino
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1122019Precambrian chitin (from glucose) from fungi walls ~950MYLoron et al. Early fungi from the Proterozoic era in Arctic Canada, Naturenature.com/articles/s41586-019-1217-010.1038/s41586-019-1217-0
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1112019Partially unracemized feather amino acids in amber99MYMcCoy, Collins et al. Amino acids from feathers in amber, Scientific Reportsnature.com/articles/s41598-019-42938-9"Burmese amber sample shows less racemisation than the Baltic amber sample which is unexpected given that Burmese amber ~99 Ma is approximately twice as old as Baltic amber ~44 Ma"9(6420):1-8
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1102019Sugars from Cretaceous fungi in mudstones & coal ~25-70MYMarynoswki et al. Indicators of fungal metabolism, Int'l J of Coal Geologysciencedirect.com/science/article/abs/pii/S0166516218304695"co-occurrence of trehalose, mannitol and arabitol in the sedimentary rocks... suggests their fungal origin, because these... are major compounds present in most modern fungi"May 2019, pp 51-61
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1092019Lebanon's hagfish fossil with skin protein remnants ~100MYMiyashita, et al. Hagfish from the Cretaceous Tethys Sea, Proc. Nat'l Acad Scipnas.org/content/116/6/2146"The chemical mapping is consistent with the fact that a major component of hagfish slime is tightly coiled, mucin-coated α-keratin threads"icr.org/article/ancient-fossil-still-has-hagfish-slime-residue10.1073/pnas.1814794116
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1082019Edmontosaur osteocytes, blood vessels, collagen66MYUllmann, Nellermoe et al. Patterns of cellular preservation Cretaceous Res.sciencedirect.com/science/article/pii/S0195667118304324?via%3DihubIn vast Edmontosaurus bonebed, each specimen yields abundant osteocytes, blood vessels, and collagen; surprisingly, there's no correlation between burial depth nor spongy or dense bone.99:1-13dino
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1072019Anchiornis feather keratin160MYPan, Schweitzer et al. Direct evidence of feather molecular evolution PNASpnas.org/content/early/2019/01/23/1815703116"Keratins have [enhanced] preservation potential over other nonbiomineralized tissues." This is presumed apparently because feathers are not normally saturated in hemoglobin. See rsr.org/ms. 10.1073/pnas.1815703116
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1062018Flexible portions of skin layers, red-brown liver trace180MYLindgren, Schweitzer et al. Icthyosaur homeothermy and crypsis, Naturenature.com/articles/s41586-018-0775-x"still-flexible remnants of the original scaleless skin... epidermal and dermal... cellular, sub-cellular biomolecular constituents... also possible internal organ trace... red-brown liver... in rib cage."564:359–365
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1052018Bacteriochlorophyll (still pink & biological) pigments1.1GYGueneli et al 1.1-billion-year-old porphyrins, Proc. Nat'l Acad of Sciencespnas.org/content/115/30/E6978Senior lead researcher Assoc Prof Jochen Brocks, Australian National University, "What we’ve found is the [so far] oldest biological colour."theguardian.com/science/2018/jul/09/scientists-discover-worlds-oldest-colour-bright-pink-saharadoi.org/10.1073/pnas.1803866115
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1042018Bivalve organics in the late Cretaceous 66MYMyers et al. Cretaceous Pinna organic matrix & shell microstructure, Geologypubs.geoscienceworld.org/gsa/geology/article-abstract/46/8/711/543297/exceptional-preservation-of-organic-matrix-and?redirectedFrom=fulltext"interprismatic proteins are preserved with intact peptide bonds, and suggest an abundance of the amino acid glycine"icr.org/article/more-exceptional-preservation-of-organic-material/46 (8):711-714
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1032018Dickinsonia lipid biomarkers showing cholesteroids558MYBobrovskiy et al. Steroids establish Ediacaran Dickinsonia as animal, Sciencescience.sciencemag.org/content/361/6408/1246"lipid biomarkers extracted from organically preserved Ediacaran macrofossils... Dickinsonia... produced cholesteroids..." But Google: Günter Bechly dickinsonia, for his rebuttal.361(6408):1246-1249
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1022018Starch (a polysaccharide) in a forest deposit280MYLiu et al. Fossil starch reveals early plant–animal mutualism, Geologypubs.geoscienceworld.org/gsa/geology/article/46/5/423/529024/280myold-fossil-starch-reveals-early-plantanimal"ultrathin sections of the megaspores indicate that they may have been produced after the megaspores were fertilized" and "used to attract and reward animals... for megaspore dispersal"46(5):423-426
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1012017Ichthyosaur blood cells180MYPlet, Grice et al. Blood cell-like structures, collagen. Scientific Reportshttps://www.nature.com/articles/s41598-017-13873-4#Fig6
"the ichthyosaur bone contained elevated concentrations of the biomolecule cholesterol"
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1002017Sea turtle muscle protein, beta-keratin, pigment54MYLindgren, Schweitzer et al. Juvenile sea turtle, Nature: Scientific Reportsnature.com/articles/s41598-017-13187-53-inch long turtle (as with entire list, no report that it was found coated in biological iron)7(13324):1-13
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992017Bird preening (sebaceous) gland still containing oil48MYO'Reilly et al. Uropygial gland lipids in 48MY-old bird, Proc. Royal Soc. Brspb.royalsocietypublishing.org/content/284/1865/20171050icr.org/article/10401284(1865)
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982017Dinosaur eggshell color by protoporphyrin/biliverdin66MYWiemann et al. Dinosaur egg color: oviraptors laid blue-green eggs, PeerJpeerj.com/articles/3706/"Preserved dinosaur egg color... pushes the current limits of the vertebrate molecular and associated soft tissue fossil record..."PeerJ 5:e3706dino
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972017Ginkgo leaves "full of organic molecules"200MYVajda et al. Molecular signatures of leaves unexpected, Nature Eco & Evolnature.com/articles/s41559-017-0224-5icr.org/article/fossil-plants-contain-original-moleculess41559-017-0224-5
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962017Melanin in nodosaurus dino (and other biologicals)112MYBrown et al. Exceptionally preserved armored dinosaur, Current Biology cell.com/current-biology/fulltext/S0960-9822(17)30808-4Borealopelta markmitchelli27(16):2514-2521.e3dino
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952017Tick-related mammalian "red blood cells"20-45MYPoinar, Tick erythrocytes reveal piroplasms, Journal of Medical Entomologyacademic.oup.com/jme/article/3073510/Fossilized-Mammalian-Erythrocytes-Associated-With54(4):895-900
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942017Nothosaurus coracoid vessel, hydroxyproline~225MYSurmik et al. Intraosseous fossilized middle Triassic soft tissue, Sci of Naturencbi.nlm.nih.gov/pubmed/28280877104(3-4):25
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932017Reconfirmation of B. canadensis dinosaur collagen80MYSchroeter, Schweitzer et al. Expansion of sequence, J of Proteome Researchpubs.acs.org/doi/abs/10.1021/acs.jproteome.6b0087316(2):920-932dino
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922017Lufengosaurus rib collagen195MYLee et al. Collagen in an early Jurassic sauropod, Nature Communicationsnature.com/articles/ncomms14220ncomms14220dino
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912016Proteinaceous amide groups in chert1.88GYAlleon, Bernard et al. Molecular preservation of 1.88 Ga... organic..., Naturenature.com/doifinder/10.1038/ncomms11977ncomms11977
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902016Early Triassic reptile blood vessels, etc.247MYSurmik et al. Organic Matter from Triassic Reptile, PLoS ONEjournals.plos.org/plosone/article?id=10.1371/journal.pone.0151143icr.org/article/organic-residue-247-million-years-old/pone.0151143
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892016Psittacosaurus dinosaur skin now also has keratin130MYVinther et al. Camouflage in an Ornithischian dinosaur, Current Biologycell.com/current-biology/pdf/S0960-9822(16)30706-0.pdfnews.nationalgeographic.com/2016/09/dinosaur-camouflage-fossil-find/26:2456–2462dino
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882016Beta-keratin in oviraptor dinosaur claw75MYMoyer, Schweitzer et al. The claw of nesting dinosaur, Proc Royal Society Brspb.royalsocietypublishing.org/content/283/1842/20161997283(1842):1-7dino
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872015Hadrosaur "blood vessels from Brachylophosaurus"80MYCleland, Schweitzer et al. Blood vessels characterization, J Proteome Respubs.acs.org/doi/10.1021/acs.jproteome.5b00675The first paper to sometimes drop qualifier "like" as in "blood-vessel-like" and state clearly "dinosaur vessels", etc.14(12):5252-5262dino
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862015Dinosaur collagen and red blood cells75MYBertazzo, et al. Fibres and cellular structures..., Nature Communicationsnature.com/ncomms/2015/150609/ncomms8352/full/ncomms8352.htmlncomms8352dino
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852015Dinosaur melanosomes and pigment150MYLindgren et al. Molecular composition of Jurassic feathers, Scientific Reportsnature.com/articles/srep13520srep13520dino
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842015A pterosaur's orange claw material150MYHone et al. A specimen of Rhamphorhynchus with soft tissue, PeerJpeerj.com/articles/1191/
"The claw sheathes seen here do seem to be genuinely preserved soft tissues given their clear colour and texture differences to the surrounding matrix."
PeerJ 3:e1191
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832014Precambrian multicellular animals (metazoans)530MYMoczydłowska et al. Biogeochemisty of Ediacaran Metozoa, J of Paleontologycambridge.org/core/journals/journal-of-paleontology/article/microstructure-and-biogeochemistry-of-the-organically-preserved-ediacaran-metazoan-sabellidites/2961F8F4A2E33EA7B8B6CE683896E27788(2):224-239
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822014Turtle blood vessels and osteocytes55MYCadena and Schweitzer. A Pelomedusoid Turtle..., J of Herpetologyhttps://meridian.allenpress.com/journal-of-herpetology/article-abstract/48/4/461/197058/A-Pelomedusoid-Turtle-from-the-Paleocene-Eocene-of
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812014Bird, marine reptile, mosasaur, icthyosaur pigments55-190MYEdwards et al. Pigments through time [survey], Pigment Cell Melanoma Res.onlinelibrary.wiley.com/doi/epdf/10.1111/pcmr.12271"...so far the data show that original chemical retention may be more common than previously believed."27(5):684-685
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802014Turtle, mosasaur, and icthyosaur eumelanin55-190MYLindren et al. Pigmentation... melanism in extinct marine reptiles, Naturenature.com/nature/journal/v506/n7489/full/nature12899.html506(7489):484-488
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792014Gastropod egg capsule chitin200MYWysokowski et al. Chitin in 200-million-year-old egg capsules, Paleobiologycambridge.org/core/journals/paleobiology/article/identification-of-chitin-in-200millionyearold-gastropod-egg-capsules/425056844537EFF61EC3B68849653790What's an egg capsule? See Wikipedia for "Otheca" and shark cases at:en.wikipedia.org/wiki/Egg_case_(Chondrichthyes)40(4):529-540
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782014Extinct aquatic bird Gansus feather melanosomes~125MYMoyer, Schweitzer et al. Melanosomes or Microbes, Scientific Reportsnature.com/articles/srep04233"have refined the age of the Xiagou Formation lacustrine beds to the early Aptian stage"srep04233
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772013Triceratops osteocytes; soft sheets of fibrillar bone 65MYArmitage, Anderson, Soft sheets of horn fibrillar bone, Acta Histochemicasciencedirect.com/science/article/pii/S0065128113000020Published in Italy (Acta Histochemica)Hear interviews with the authors at:rsr.org/triceratops115(6):603-608dino
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762013Crustacean steroids380MYMelendez et al. Preservation of Palaeozoic steroids.. Scientific Reportshttps://www.nature.com/articles/srep02768
"The co-occurrence of biomolecules and geomolecules in sediments affords extremely specific prerequisites..."
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752013Vauxia sea sponge chitin505MYEhrlich et al. 505-million-year old chitin in Vauxia gracilenta, Scientific Reportsnature.com/articles/srep03497srep03497
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742013Lufengosaurus embryo bone protein190MYReisz, Embryology of early Jurassic dino with evidence of organic... Naturenature.com/articles/nature11978nature.com/news/oldest-dinosaur-embryo-fossils-discovered-in-china-1.12779
False: Earliest 'known' organic remains of a terrestrial vertebrate. See 1966 below.
496(7444):210-214dino
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732013Signature of blood in mosquito gut46MYGreenwalt et al. Hemoglobin-derived porphyrins. Proc. Nat'l Acad of Scipnas.org/content/early/2013/10/08/1310885110.abstractsmithsonianscience.org/2013/10/blood-molecules-preserved-for-millions-of-years-in-abdomen-of-fossil-mosquito/?utm_medium=referral&utm_source=pulsenews10-14-2013
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722013Dino DNA & proteins actin, tubulin, PHEX, histone66-80MYSchweitzer et al. Analyses of dino osteocytes support endogenous... Bonencbi.nlm.nih.gov/pubmed/23085295"All of our assays require at least 4 or more bases to generate reactivity... each capitalizing on different aspects of the chemistry of DNA... [show] identical patterns..."52(1):414-23dino
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712013Biological material in crinoids350MYO'Malley et al. Taxon-specific organic molecules, Geologygeology.gsapubs.org/content/early/2013/01/17/G33792.1.abstract41(3):347-350
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702012Cuttlefish ink sac160MYGlass et al. Jurassic period eumelanin pigment, Proc. Nat'l Acad. of Sciencespnas.org/content/109/26/10218.abstract?sid=b46190e9-09ce-4c52-ac78-de00da96d75bweb.archive.org/web/20120525074302/http://news.nationalgeographic.com/news/2012/05/120521-squid-cuttlefish-ink-sacs-fossils-melanin-science-simon/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+ng/News/News_Main+(National+Geographic+News+-+Main)&utm_content=Google+Reader109(26):10218-10223
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692012Archaeopteryx black melanin organosulpher residue150MYCarney et al. Color and nature of Archaeopteryx feather, Naturenature.com/articles/ncomms1642"not due to precipitation of the inorganic mineral"ncomms1642
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682012Jurassic turtle osteocytes145MYCadena, Schweitzer, Osteocytes preservation from the Jurassic, Bonehttps://www.sciencedirect.com/science/article/abs/pii/S875632821200865451(3):614-620
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672011Chitin arthropod (scorpion) and eurypterid proteins417MYCody et al. Molecular signature of Paleozoic chitin-protein complex, Geologygeology.geoscienceworld.org/content/39/3/255.abstract39(3):255-258
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662011Type 1 collagen in Cretaceous mosasaur humerus~70MYLindgren et al. Microspectroscopic evidence of bone proteins, PLoS ONEjournals.plos.org/plosone/article?id=10.1371/journal.pone.0019445Its "4.68%±0.1 of modern 14C" attributed to contamination yet Nature 2017 on "Carbon fixation" finds cynobacteria get "virtually all" its carbon from the bone; not the atmosphere; rsr.org/14c6(4): e19445
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652011Endogenous Mississaepia cuttlebone chitin sheets34MYWeaver et al. Late Eocene cuttlefish B-chitin consistent organics, PLoS ONEdx.plos.org/10.1371/journal.pone.0028195pone.0028195
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642011Lizard tail skin breakdown products50MYEdwards et al. Tissue preservation in 50MY-old reptile skin, Proc Royal Soc Brspb.royalsocietypublishing.org/content/early/2011/03/12/rspb.2011.0135.fullrspb.2011.0135
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632011Type l collagen in T. rex and hadrosaur dinosaurs68MYSan Antonio, et al, Dinosaur peptides... mech of protein survival, PLoS ONEplosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0020381pone.0020381dino
79
622011Bird feather pigment from Confuciusornis sanctus120MYWogelius et al. Biomarkers for eumelanin pigment in fossil record, Sciencescience.sciencemag.org/content/333/6049/1622333(6049):1622-1626
80
612010Messel feather highly reflective nanostructure40MYVinther et al. Structural coloration in a fossil feather, Roy Soc Biology Lettersncbi.nlm.nih.gov/pmc/articles/PMC2817243/
Published online Aug. 26, 2009. "The keratin... has degraded... the preserved layer of melanosomes is apparently highly reflective."
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81
602010Archaeopteryx feather shaft original chem remains150MYBergmann et al. Archaeopteryx feathers & bone chemistry, Proc Nat Acad Scincbi.nlm.nih.gov/pmc/articles/PMC2889062/?tool=pmcentrez107(20):9060-9065
82
592010Sinosauropteryx compsognathid dino melanosomes125MYZhang et al. Fossilized melanosomes and the colour of dinos & birds, Naturenature.com/nature/journal/v463/n7284/full/nature08740.html463:1075-1078dino
83
582010Hadrosaur biomolecules, collagen & other proteins80MYPeterson et al. Microbial biofilms [&] soft tissue in archosaurs, PLoS Onejournals.plos.org/plosone/article?id=10.1371/journal.pone.0013334"compelling evidence countering the argument that these structures are simply microbial biofilm."pone.0013334dino
84
572010Psittacosaurus dinosaur skin color125MYLingham-Soliar et al. Integument & color of a ceratopsian, Science of Naturespringerlink.com/content/3wnn717728x963n2/Published in Germany (Naturwissenschaften)rspb.royalsocietypublishing.org/content/275/1636/775.abstractPsittacosaurus sample used in PRSB 275:775-780.97:479-486dino
85
562010Mammal hair in amber100MYVullo et al. Mammalian hairs in early Cretaceous amber, Science of Natureadsabs.harvard.edu/abs/2010NW.....97..683V97(7):683-687
86
552009Hadrosaur vessel proteins, sequenced collagen80MYSchweitzer et al. Biomolecular... protein sequences of hadrosaur, Sciencehttps://www.science.org/doi/10.1126/science.1165069324(5927):626-631dino
87
542009Hadrosaur skin cell structures/macromolecules66MYManning et al. Chemistry in a mummified hadrosaur, Proc. Royal Society Brspb.royalsocietypublishing.org/content/276/1672/3429.fullRelated: Hadrosaur their teeth were more advanced than today's grazers. rsr.org/soft#teeth276:3429-3437dino
88
532009Salamander muscle, whole18MYMcNamara et al. Organic... fossil musculature with ultracellular detail, P RS Brspb.royalsocietypublishing.org/content/277/1680/423.full277(1680):423-427
89
522008Feather melanocytes100MYVinther et al. The color of fossil feathers, Royal Society Biology Lettersrsbl.royalsocietypublishing.org/content/4/5/5224(5):522-525
90
512008Psittacosaurus skin fibers~125MYLingham-Soliar, Psittacosaurus complex fibre architecture, Proc Royal Soc Bncbi.nlm.nih.gov/pmc/articles/PMC2596897/275(1636):775-780dino
91
502008T. rex amino acid sequences68MYSchweitzer et al. Molecular methods examining..., Comptes Rendus Palevolsciencedirect.com/science/article/pii/S1631068308000250researchgate.net/publication/222219084_Microscopic_chemical_and_molecular_methods_for_examining_fossil_preservation7(2-3):159-184dino
92
492008Osteocyte (bone cells)5MYBell et al, Mineralized osteocyte: a living fossil, American Journal of Physicsncbi.nlm.nih.gov/pubmed/18615594137:449-456
93
482007Tyrannosaurus rex collagen68MYSchweitzer et al. T. rex soft tissue suggests the presence of protein, Sciencesciencemag.org/content/316/5822/277.short316(5822):277-280dino
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472007Triceratops blood vessels, osteocytes66MYSchweitzer, Horner et al. Cellular preservation from Cretaceous, Proc RS Brspb.royalsocietypublishing.org/content/274/1607/183See Table 1274(1607):183-197dino
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462007T. rex proteins sequenced68MYAsara, Schweitzer et al. Mastodon & T. rex protein sequences, Sciencescience.sciencemag.org/content/316/5822/280316(5822):280-285dino
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452007T. rex proteinaceous materials, sequenced collagen40-150MYSmejkal, Schweitzer, Will tech. enable dino proteomics, Exp Rev Proteomicstandfonline.com/doi/full/10.1586/14789450.4.6.695?scroll=top&needAccess=true4(6):695-699dino
97
442006Frog bone marrow10MYMcNamara et al. Organic preservation of amphibian bone marrow, Geologygeology.gsapubs.org/content/34/8/641?ijkey=c5a35e6b7bf0fd6f515be330120599b4321e122e&keytype2=tf_ipsecshaIn 2006 also, Schweitzer's Dangerous Discovery, dinosaurs smell like cadaversdiscovermagazine.com/2006/apr/dinosaur-dna34(8):641-644
98
432005Sauropod egg shell ovalbumin protein~75MYSchweitzer et al. Molecular preservation in dinosaur eggshells, P Roy Soc Bresearchgate.net/publication/7853645_Molecular_preservation_in_Late_Cretaceous_sauropod_dinosaur_eggshells272(1565):775-784dino
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422005Avian bone collagen implying "molecular integrity"~75MYAvci, Schweitzer et al. Bone collagen from late Cretaceous, Langmuirncbi.nlm.nih.gov/pubmed/15807605
"No appreciable differences in collagen pull-off properties were measured between fossil and extant bone samples under physiological conditions."
21(8):3584-3590
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412005Dinosaurian cellular and sub-cellular preservation~68MYWittmeyer, Schweitzer, Dino vessels and cells in fossils, J Vert. Paleontologyjstor.org/stable/4524499?seq=1#page_scan_tab_contents25(3) 65th Ann. Mtgdino