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Liopleurodon pachydeirus

Reptilia - Plesiosauria - Pliosauridae

Taxonomy
Pliosaurus pachydeirus was named by Seeley (1869). Its type specimen is CAMSM J.46912, a set of vertebrae (atlas-axis plus 15 cervical vertebrae), and it is a 3D body fossil. Its type locality is Great Gransden brick pit, which is in an Oxfordian marine claystone in the Ampthill Clay Formation of the United Kingdom.

It was synonymized subjectively with Pliosaurus ferox by Lydekker (1889); it was recombined as Liopleurodon pachydeirus by Tarlo (1960).

Synonymy list
YearName and author
1869Pliosaurus pachydeirus Seeley pp. 118, 143
1960Liopleurodon pachydeirus Tarlo pp. 167-168 figs. pl. 25, pl. 28, figs1-1b

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
RankNameAuthor
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
suborderSauropterygia
orderPlesiosauriade Blainville 1835
superfamilyPliosauroideaWelles 1943
familyPliosauridaeSeeley 1874
—Thalassophonea
genusLiopleurodon
speciespachydeirus()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Liopleurodon pachydeirus Seeley 1869
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Diagnosis
No diagnoses are available