Polyptychodon

Taxobox
name = "Polyptychodon"
fossil_range = Early - Late Cretaceous

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image_width = 250px
regnum = Animalia
phylum = Chordata
classis = Sauropsida
ordo = Plesiosauria
subordo = Pliosauroidea
familia = Pliosauridae
genus = "Polyptychodon"
genus_authority=Owen, 1841Owen R. (1840-1845 [1841] ). "Odontography". Hippolyte Baillière, London, 655 p.]
subdivision_ranks=Species
subdivision=
*"P. interruptus" Owen, 1841 (type species)
*"P. hudsoni" Welles & Slaughter, 1963 Welles SP, Slaughter BH. 1963. The first record of the plesiosaurian genus "Polyptychodon" (Pliosauridae) from the New World. "Journal of Paleontology" 37 (1):131-133.]

"Polyptychodon" is an extinct genus of sauropterygian reptile belonging to the family Pliosauridae that lived during the Cretaceous. Its fossils have been found in Europe and North America.

The type species, "P. interruptus" is known from Albian stage deposits from England Buffetaut E, Colleté C, Dubus B, Petit J-L. 2005. The "sauropod" from the Albian of Mesnil-Saint-Père (Aube, France): a pliosaur, not a dinosaur. "Association Géologique Auboise, Bulletin Annuel, Sainte-Savine" 26: 3-8.] . Greensand Formation pliosaur teeth and vertebrae from England and eastern France have long been placed within this poorly known genus . Comparison between French Albian-aged isolated vertebrae and "Kronosaurus" suggests a size of approximately 7 m for "Polyptychodon" .One species is known from North America ("P. hudsoni", holotytpe = SMM 60313). It is known from Turonian stage rocks of Dallas, Texas .

References

External links

* [http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=36507 "Polyptychodon"] in the Paleobiology Database