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Thalattosaurus borealis

Reptilia - Thalattosauria

Taxonomy
Thalattosaurus borealis was named by Nicholls and Brinkman (1993). Its type specimen is TMP 89.126.1, a partial skeleton (Anterior part of skull, from tip of snout to orbital region, preserved in right lateral view. An incomplete mandible, left pterygoid, and isolated ribs and cent), and it is a 3D body fossil. Its type locality is Wapiti Lake, locality T, which is in an Anisian/Ladinian marine shale/marl in the Sulphur Mountain Formation of Canada.

Synonymy list
YearName and author
1993Thalattosaurus borealis Nicholls and Brinkman p. 271 fig. 8
1999Thalattosaurus borealis Nicholls p. 14

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Eugnathostomata
—Teleostomi(Bonaparte 1836)
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Thalattosauriformes
orderThalattosauria
superfamilyThalattosauroideaNopcsa 1928
genusThalattosaurus
speciesborealis

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.

†Thalattosaurus borealis Nicholls and Brinkman 1993
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Diagnosis
ReferenceDiagnosis
E. L. Nicholls and D. Brinkman 1993Small; premaxilla hooked anteriorly; sharp hor- izontal ridge along anterior tip of premaxilla separates external striated bone from smooth unornamented bone of pseudodont dentition; vomerine teeth triangular, posterior mandibular teeth set flush with dorsal edge of mandible.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marineo
Locomotion: actively mobilep
Created: 2017-04-17 10:38:24
Modified: 2017-04-17 10:38:24
Source: o = order, subp = subphylum, p = phylum
References: Kiessling 2004, Bush and Bambach 2015, Carroll 1988

Age range: base of the Anisian to the top of the Ladinian or 246.70000 to 237.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Anisian - Ladinian246.7 - 237.0Canada (British Columbia) Thalattosaurus borealis (type locality: 152278)