Superfamille
Valide Éteint

Placodontoidea

(Nopcsa 1923)

Placodonts are an extinct order of marine reptiles that lived during the Triassic period, becoming extinct at the end of the period. They were part of Sauropterygia, the group that includes plesiosaurs. Placodonts were generally between 1 and 2 m in length, with some of the largest measuring 3 m (9.8 ft) long.

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Plage temporelle
Trias
Jurassique
Crétacé
Paléogène
Néogène
252 201 145 66 0 Ma
Occurrences PBDB
35
Groupe
Sauroptérygiens
Marin
Placodontoidea
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fossil of placodus © Ghedoghedo · CC BY-SA 3.0 · Wikimedia

Légende en anglais — traduction française non disponible.

PBDB Wikipedia
Classification
Sauropterygia Sous-ordre
Placodontia Ordre
Placodontoidea Superfamille
Sites de découverte 35 sites géolocalisés
Répartition
Principaux pays
🇩🇪 Allemagne
25
🇮🇱 Israël
4
🇵🇱 Pologne
3
🇳🇱 Pays-Bas
1
🇮🇹 Italie
1
🇨🇳 Chine
1
Formations géologiques
Jena
3
Muschelkalk
2
Wellenkalk
1
Vossenveld
1
Calcare di Recoaro
1
Guanling
1
Trochitenkalk
1
Raibl
1
Distribution temporelle
Carnien (237–227.3 Ma)
1
Ladinien (241.464–237 Ma)
14
Anisien (246.7–241.464 Ma)
20
Images 1
Bibliographie
Description originale
O. Rieppel. 1995. The genus Placodus: systematics, morphology, paleobiogeography, and paleobiology. Fieldiana: Geology, new series 31:1-44 DOI ↗
Bibliographie (12)
C. Bickelmann and P. M. Sander. 2008. A partial skeleton and isolated humeri of Nothosaurus (Reptilia: Eosauropterygia) from Winterswijk, The Netherlands. Journal of Vertebrate Paleontology 28(2):326-338 DOI ↗
D.- Y. Jiang, R. Motani, and W.-C. Hao, O. Rieppel, Y.-L. Sun, L. Schmitz, Z.-Y. Sun. 2008. First record of Placodontoidea (Reptilia, Sauropterygia, Placodonta) from the Eastern Tethys. Journal of Vertebrate Paleontology 28(3):904-908 DOI ↗
M. Dalla Vecchia and M. Avanzini. 2002. New findings of isolated remains of Triassic reptiles from Northeastern Italy. Bollettino della Societa Paleontologica Italiana 42(2-3):215-235
M. W. Maisch and J. Lehmann. 2002. A new basal omphalosaurid from the Middle Triassic of Germany. Neues Jahrbuch für Geologie und Paläontologie Monatshefte (9):513-525 DOI ↗
O. Rieppel. 1995. The genus Placodus: systematics, morphology, paleobiogeography, and paleobiology. Fieldiana: Geology, new series 31:1-44 DOI ↗
O. Rieppel. 1994. Osteology of Simosaurus gaillardoti and the relationships of stem-group Sauropterygia. Fieldiana: Geology, new series 28:1-85 DOI ↗
G. Haas. 1967. On the vertebral centra of nothosaurs and placodonts from the Muschelkalk of Wadi Ramon, Negev, Israel. Problemes Actuels de Paleontologies 163:329-333
F. Brotzen. 1956. Stratigraphical studies on the Triassic vertebrate fossils from Wadi Raman, Israel. Arkiv foer Mineralogi och Geologi 2(9):191-217
M. Lang and F. v. Huene. 1952. Die Saurier Thüringens nach Erhebungen ihres centralen Betreuters Dr. med. u. Dr. rer. nat. h. c. Hugo Rühle von Lilienstern† [The Dinosaurs of Thuringia after Surveys of Their Central Supervisor M.D. and Dr. Nat. Sci. Hugo Rühle von Lilienstern†] DOI ↗
P. Assmann. 1914. Beitrag zur Kenntnis der Stratigraphie des oberschlesischen Muschelkalk. Jahrbuch der königlich preussischen geologischen Landesanstalt zu Berlin 34(1):268-340
S. von Wöhrmann. 1889. Die Fauna der sogenannten Cardita- und Raibler-Schichten in den Nordtiroler und bayerischen Alpen. Jahrbuch des kaiserlich-königlichen Geologischen Reichsanstalt, Wein 39:181-258
R. Owen. 1859. Description of the skull and teeth of the Placodus laticeps, Ow, with indications of other new species of Placodus, and evidence of the saurian nature of that extinct genus. Proceedings of the Royal Society of London 9:157-159