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Largocephalosaurus polycarpon

Reptilia - Saurosphargidae

Taxonomy
Largocephalosaurus polycarpon was named by Cheng et al. (2012). Its type specimen is Wuhan Institute of Geology and Mineral Recourses (WIGM) SPC V 1009, a skeleton (a nearly complete and articulated skeleton (more than 113 cm in length), with most part of the tail missing), and it is a 3D body fossil. Its type locality is Luoping area, upper member of Guanling Formation limestone (middle Anisian), which is in a Pelsonian marine limestone in the Guanling Formation of China. It is the type species of Largocephalosaurus.

Synonymy list
YearName and author
2012Largocephalosaurus polycarpon Cheng et al. p. 34 figs. 1-3
2013Largocephalosaurus polycarpon Li et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
familySaurosphargidae
genusLargocephalosaurus
speciespolycarpon

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.

†Largocephalosaurus polycarpon Cheng et al. 2012
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Diagnosis
ReferenceDiagnosis
L. Cheng et al. 2012A large eosauropterygian with a big skull; frontals paired; upper temporal fossa expanded laterally; anterior process of squamosal entering orbit; teeth robust with basally expanded crown and blunt tip; cervical region short; transverse process of dorsal vertebrae
distinctly elongated; dorsal ribs short and wide; gastralia stout; scapula with pronounced posterodorsally extending blade; humerus distinctly robust; eleven carpal ossifications including small pisiform; and formula of manus 2-3-4-5-5.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988

Age range: Pelsonian or 247.20000 to 242.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Pelsonian247.2 - 242.0China (Yunnan) Largocephalosaurus polycarpon (type locality: 123839)