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Histologic studies of ostracoderms, placoderms and fossil elasmobranchs. 6. Hard tissues of Ordovician vertebrates
39/39 checkable references clean · checked 2026-07-14
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a publisher retraction, withdrawal, or removal notice.
55 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 39 checked references that resolve
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The cuticle of the aglaspidid arthropods, a red‐herring in the early history of the vertebrates
resolves10.5479/si.00963801.52-2177.235
Fossil fishes in the collection of the United States National Museum
resolves10.1126/science.237.4811.190
A Reassessment of
<i>Astraspis desiderata</i>
, the Oldest North American Vertebrate
resolves10.1111/j.1463-6395.1961.tb00060.x
Aufbau des Panzers obersilurischer Heterostraci und Osteostraci Norddeutschlands (Geschiebe) und Oesels
resolves10.1007/BF02988052
Porenschuppen und Sinneslinien des ThelodontiersPhlebolepis elegans Pander
resolves10.1111/j.1502-3931.1969.tb01249.x
LOPHOSTEUS SUPERBUS PANDER, EIN TELEOSTOME AUS DEM SILUR OESELS
resolves10.1111/j.1502-3931.1971.tb01285.x
LOPHOSTEUS SUPERBUS PANDER: ZÄHNE, ZAHNKNOCHEN UND BESONDERE SCHUPPENFORMEN
resolves10.1126/science.6986656
Immunohistochemical Localization of Amelogenins in Enameloid of Lower Vertebrate Teeth
resolves10.1080/02724634.1981.10011886
The phylogeny of the Craniata, with particular reference to the significance of fossil “agnathans”
resolves10.1002/jmor.1051600106
Ultrastructure of calcified cartilage in the endoskeletal tesserae of sharks
resolves10.1080/02724634.1984.10012022
A review of cosmine: its structure, development, and relationship to other forms of the dermal skeleton in osteichthyans
resolves10.1177/00220345690480052101
Phylogeny and Comparative Anatomy of Oral Ectodermal-Ectomesenchymal Inductive Interactions
resolves10.5479/si.00963801.108-3391.1
Pycnaspis splendens, New Genus, New Species, a New Ostracoderm from the Upper Ordovician of North America
resolves10.1111/j.1463-6409.1976.tb00680.x
Palaeohistological Notes 3. The interpretation of pleromin (pleromic hard tissue) in the dermal skeleton of psammosteid heterostracans1
resolves10.1111/j.1463-6409.1978.tb00587.x
Microstructure and Growth of the Dermal Skeleton in Fossil Actinopterygian Fishes: <i>Birgeria</i> and <i>Scanilepis</i>
resolves10.1111/j.1463-6409.1978.tb00596.x
Microstructure and Growth of the Dermal Skeleton in Fossil Actinopterygian Fishes: <i>Boreosomus, Plegmolepis</i> and <i>Gyrolepis</i>
resolves10.1111/j.1463-6409.1978.tb00613.x
Microstructure and Growth of the Dermal Skeleton in Fossil Actinopterygian Fishes: <i>Nephrotus</i> and <i>Colobodus</i>, with Remarks on the Dentition in Other Forms<sup>1</sup>
resolves10.1111/j.1096-3642.1986.tb01329.x
The phylogenetic significance of bone types in euteleost fishes
resolves10.1098/rspb.1974.0005
Autoradiographic study of the formation of enameloid and dentine matrices in teleost fishes using tritiated amino acids
resolves10.1098/rspb.1976.0077
Observations with the electron microscope on enameloid formation in the common eel (
<i>Anguilla anguilla</i>
; Teleostei)
resolves10.1016/0031-0182(79)90154-8
The palaeoecology of the Ordovician Harding Sandstone (Colorado, U.S.A.)
resolves10.1130/GSAB-3-153
Preliminary Notes on the Discovery of a Vertebrate Fauna in Silurian (Ordovician) Strata
resolves10.1017/S0080456800019013
XVIII.—Rare and New Ostracoderm Fishes from the Downtonian of Shropshire
The 55 references without a DOI — listed, not checked
no DOI — not checkedHadimopanella from the Lower Cambrian of North Greenland: structure and affinities
no DOI — not checkedEarly Cambrian button‐shaped phosphatic microfossils from the Siberian Platform
no DOI — not checkedStudies in herpetology
no DOI — not checkedPaléoenvironnements des heterostracés. ver‐tébrés agnathes Ordoviciena à Déoniens
no DOI — not checkedResearch on Ordovician rocks of North Ny Friesland. Spitsbergen
no DOI — not checkedAn early Ordovician vertebrate
no DOI — not checkedNachweis Von Unterdevon im Ostseegebiete durch Konglomeratgeschiebe mit Fischresten
no DOI — not checkedA study of the oldest known vertebrates. Astraspis and Eriptychius
no DOI — not checkedThe early vertebrate Astraspis, habitat based on a lithologic association
no DOI — not checkedA review ot the habitat of the earliest vertehrates
no DOI — not checkedOrdovician vertebrates from Western United States
no DOI — not checkedCephalaspids from the Middle Ordovician Platteville Limestone
no DOI — not checkedConodont biostratigraphy of the Middle Taurus
no DOI — not checkedÜber Thelodontier‐Schuppen
no DOI — not checkedVertebrate hard tissues
no DOI — not checkedDevelopmental and evolutionary aspects of the neural crest
no DOI — not checkedAtlas of palaeobiogeography
no DOI — not checkedStudien über das Integument von Cyclopterus lumpus L. (Beiträge zur Kenntnis der Entwicklung der Haut und des Hautskelettes von Knochenfischen)
no DOI — not checkedVers la reconstruction théoretique du premier vertébré
no DOI — not checkedOn the oldest known teleostome fish Andreolepis hedei Gross (Ludlow of Gotland), and the systematic position of the 1ophosteids
no DOI — not checkedThéories de l' évolution des vertébrés reconsidérées a la lumière des récentes découvertes sur les vertébrés inférieurs
no DOI — not checkedInvestigations on the phylogeny and systematics of fossil fishes and agnaths
no DOI — not checkedHistological and chemical studies in hard tissues of fossil and recent selachians and in heterostracans
no DOI — not checkedThe enigmatic Middle Ordovician fossil Archeognathus and its relation to conodonts and vertebrates
no DOI — not checkedOrdovician vertebrates from Ontario
no DOI — not checkedArticulated Ordovician fish from Canyon City, Colorado
no DOI — not checkedSilurian vertebrates of Estonia and West Latvia
no DOI — not checkedThe biology and evolution of lungfisher
no DOI — not checkedConodonts of the Krivaya Luka Stage (Middle Ordovician) from the Siberian Platform
no DOI — not checkedDistribution of the Ordovician conodonts on the Siberian Platform. General survey
no DOI — not checkedBiology of the mouth
no DOI — not checkedPhosphatic microfossils from the Ordovician of the United States
no DOI — not checkedHistologic studies of placoderms and fossil elasmobranchs, 1. The endoskeleton, with remarks on the hard tissues of lower vertebrates in general
no DOI — not checkedNotes on some Paleozoic lower vertebrates from Spitsbergen and North America
no DOI — not checkedPalaeohistological notes. 2. Certain comments on the phyletic significance of acellular bone tissue in early lower vertebrates
no DOI — not checkedStructural and chemical organization of teeth
no DOI — not checkedCurrent problems of lower vertebrate phylogeny, Proceedings of the 4th Nobel Symposium
no DOI — not checkedDescription, with special reference to the dermal skeleton, of a new radotinid arthrodire from the Gedinnian of Arctic Canada
no DOI — not checkedØrvig T.1977.A survey of odontodes (“dermal teeth”) from developmental structural functional and phyletic points of view. InProblems in vertebrate evolution(edsS. M.Andrewset. al.).Linn. Soc. Symp. Ser. 4:53–75.
no DOI — not checkedDiscovery of Ordovician vertebrates in the Arbuckle Mountains of Oklahoma
no DOI — not checkedPatterson C.1977.Cartilage bones dermal bones and membrane bones or the exoskeleton versus the endoskeleton. InProblems in vertebrate evolution(edsS. M.Andrewset al.) Linn. Soc. Symp. Ser. 4:77–121.
no DOI — not checkedAnatolepis from the early Ordovician of East Greenland—not a fishy tail
no DOI — not checkedAnatoleprs— a problematic Ordovician vertebrate reinterpreted as an arthropod
no DOI — not checkedMis en évidencc de tissu osseux dans le squelette axial d'un chondrichthyen: la Rousette (Scyliorhinus canicula)
no DOI — not checkedDescriptive and illustrated catalogue of the histological series contained in the Museum of the Royal College of Surgeons of England. 2. Structure of the skeleton in vertebrate animals
no DOI — not checkedStructural convergence between enameloid of actinopterygian teeth and shark teeth
no DOI — not checkedQuelques remarques sur l'histoire évolutive des tissus squelettiques chez les vertébrés et plus periculièrement chez les tétrapodes
no DOI — not checkedSchaeffer B.1977.The dermal skeleton in fishes. InProblems in vertebrate evolution(edsS. M.Andrewset al.) Linn. Soc. Symp. Ser. 4:25–52.
no DOI — not checkedVertebratenreste aus einem unterordovizischen Geschiebe
no DOI — not checkedDevelopment, function and evolution of teeth
no DOI — not checkedThe palaeoecology of the Ordovician vertebrates of the Harding Formation
no DOI — not checkedStensiö E. A.1964.Les cyclostomes fossiles ou ostracodermes.—InTraité de paléontologie(ed.J.Piveteau)4 1:96–382.
no DOI — not checkedThomson K. S.1977.On the individual history of cosmine and a possible electroreceptive function of the pore‐canal system in fossil fishes. InProblems in vertebrate evolution(edsS. M.Andrewset al.) Linn. Soc. Symp. Ser. 4:247–270.
no DOI — not checkedPreliminary note on Silurian and Devonian ostracoderms from Cornwallis and Somerset Islands, Canadian Arctic Archipelago
no DOI — not checkedEarly Cambrian phosphatic microfossils from Southern Spitsbergen (Hornsund region)
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