Genus
Valid Extinct

Placodus

Agassiz 1833

Placodus is an extinct genus of marine reptiles belonging to the order Placodontia, which swam in the shallow seas of the middle Triassic period. Fossils of Placodus have been found in Central Europe and China.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
34
Group
Sauroptérygiens
durophage amphibious Marine
Placodus
click to enlarge
fossil of placodus © Ghedoghedo · CC BY-SA 3.0 · Wikimedia
Placodus
Placodus
PBDB ↗ Wikipedia ↗
Classification
Sauropterygia Suborder
›
Placodontia Order
›
Placodontoidea Superfamily
›
Placodontidae Family
›
Placodus Genus
Fossil sites 34 geolocated sites
Distribution
Top countries
🇩🇪 Germany
25
🇮🇱 Israel
3
🇵🇱 Poland
3
🇳🇱 Netherlands
1
🇮🇹 Italy
1
🇨🇳 China
1
Geological formations
Jena
3
Muschelkalk
1
Wellenkalk
1
Vossenveld
1
Calcare di Recoaro
1
Guanling
1
Trochitenkalk
1
Raibl
1
Temporal distribution
Carnian (237–227.3 Ma)
1
Ladinian (241.464–237 Ma)
14
Anisian (247–241.464 Ma)
19
Species (18)
Anomosaurus strunzi subjective synonym of Placodus gigas 247 Ma
Crurosaurus problematicus nomen dubium, species not entered Placodus
Omphalosaurus peyeri subjective synonym of Placodus gigas 247 Ma
Placodus aethiops nomen nudum, species not entered Placodus
Placodus andriani nomen dubium, species not entered Placodus 247 Ma
Placodus angustus nomen nudum, species not entered Placodus
Placodus antiquior subjective synonym of Placodus gigas 247 Ma
Placodus bathygnathus nomen dubium, species not entered Placodus 247 Ma
Placodus bombidens nomen dubium, species not entered Placodus
Placodus duplicatus
Placodus gigas 247 Ma
Placodus gracilis nomen dubium, species not entered Placodus
Placodus hypsiceps subjective synonym of Placodus gigas 247 Ma
Placodus impressus nomen dubium, species not entered Placodus
Placodus inexpectatus 244 Ma
Placodus pachygnathus nomen dubium, species not entered Placodus 247 Ma
Placodus quinmolaris subjective synonym of Placodus gigas 247 Ma
Placodus rugosus nomen nudum, species not entered Placodus
Synonyms (12)
Anomosaurus subjective synonym of Placodus
Crurosaurus subjective synonym of Placodus
Crurosaurus problematicus nomen dubium, species not entered Placodus
Placodus aethiops nomen nudum, species not entered Placodus
Placodus andriani nomen dubium, species not entered Placodus
Placodus angustus nomen nudum, species not entered Placodus
Placodus bathygnathus nomen dubium, species not entered Placodus
Placodus bombidens nomen dubium, species not entered Placodus
Placodus gracilis nomen dubium, species not entered Placodus
Placodus impressus nomen dubium, species not entered Placodus
Placodus pachygnathus nomen dubium, species not entered Placodus
Placodus rugosus nomen nudum, species not entered Placodus
Images 3
Bibliography
Original description
L. Agassiz. 1833. Recherches Sur Les Poissons Fossiles. Tome II (1re livraison) DOI ↗
Bibliography (11)
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 ↗
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