Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Plagiophthalmosuchus gracilirostris

Reptilia

Taxonomy
Steneosaurus gracilirostris was named by Westphal (1961). Its type specimen is BMNH 14792 and is a 3D body fossil. Its type locality is Whitby, marine reptiles, which is in a Falciferum/Bifrons offshore shale in the Alum Shale Formation of the United Kingdom. It is the type species of Plagiophthalmosuchus.

It was recombined as Plagiophthalmosuchus gracilirostris by Johnson et al. (2020).

Synonyms
  • Teleosaurus chapmanni was named by Buckland (1836). It is a 3D body fossil. Its type locality is Whitby, marine reptiles, which is in a Falciferum/Bifrons offshore shale in the Alum Shale Formation of the United Kingdom.

    It was synonymized subjectively with Steneosaurus bollensis by Westphal (1961); it was synonymized subjectively with Steneosaurus gracilirostris by Westphal (1962).
Synonymy list
YearName and author
1836Teleosaurus chapmanni Buckland
1842Teleosaurus chapmanni Owen p. 75
1853Teleosaurus chapmanni Pictet p. 484
1882Teleosaurus chapmani Quenstedt p. 161
1961Steneosaurus gracilirostris Westphal p. 211 fig. 2
1962Steneosaurus gracilirostris Westphal pp. 77-78
2009Steneosaurus gracilirostris Pierce et al. p. 1086
2012Steneosaurus gracilirostris Bronzati et al.
2020Plagiophthalmosuchus gracilirostris Johnson et al. p. 11

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
—Pseudosuchia(Zittel 1890)
—SuchiaKrebs 1974
—Paracrocodylomorpha
—Loricata(Merrem 1820)
—Crocodylomorpha()
infraorderThalattosuchia()
—Neothalattosuchia
superfamilyTeleosauroideaSaint-Hilaire 1831
genusPlagiophthalmosuchus
speciesgracilirostris()

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.

show all | hide all
Invalid names: Teleosaurus chapmanni Buckland 1836 [synonym]
Diagnosis
ReferenceDiagnosis
S. E. Pierce et al. 2009Steneosaurus gracilirostris is a long-snouted teleosaurid that differs from S. bollensis in having extremely elongated, very slender rostrum; large antorbital fenestra; relatively large ellipsoid orbit; small, rounded supratemporal fenestra; canial ornamentation reduced, including a smooth squamosal; small suborbital fenestra; palate forming median ridge accompanied by a paired lateral groove and c. 60 teeth on each maxilla and dentary; tooth crowns very slender, conical, pointed, and apically recurved.
Measurements
No measurements are available
Composition: hydroxyapatitesubo
Environment: marinesubo
Locomotion: actively mobilesubo
Life habit: nektonicsubo
Diet: carnivoresubo
Created: 2009-07-23 01:12:29
Modified: 2009-07-23 03:12:29
Source: subo = suborder
Reference: Kiessling 2004

Age range: Early/Lower Toarcian or 183.00000 to 182.00000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Toarcian183.0 - 182.0United Kingdom (England) Teleosaurus chapmani (90462)
Early/Lower Toarcian183.0 - 182.0Luxembourg (Luxembourg) Steneosaurus gracilirostris (224067)
Falciferum - Bifrons183.0 - 175.6United Kingdom (England) Steneosaurus gracilirostris, Teleosaurus chapmanni (type locality: 90459)