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Temnodontosaurus azerguensis

Osteichthyes

Taxonomy
Temnodontosaurus azerguensis was named by Martin et al. (2012). Its type specimen is Musée des Amis de la Mine in Saint-Pierre La Palud, Rhône department, France (MAMSPLP) unnumbered specimen, a skeleton (an almost complete skeleton preserved with its ventral surface exposed, cemented to a 10-m concrete slab), and it is a 3D body fossil. Its type locality is Belmont d’Azergues (Lafarge quarry), Middle Toarcian (bifrons/variabilis), which is in a Toarcian marine marl/limestone in France.

Entered
by R. Benson on 2012-09-20; modified by R. Benson on 2013-10-27

Synonymy list
YearName and author
2012Temnodontosaurus azerguensis Martin et al. p. 996 figs. 2-6
2016Temnodontosaurus azerguensis Ji et al. p. 11

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
RankNameAuthor
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Ichthyosauromorpha
—Ichthyosauriformes
—Ichthyopterygia(Owen 1840)
—Eoichthyosauria
—Ichthyosauria(de Blainville 1835)
—Parvipelvia
—NeoichthyosauriaSander 2000
genusTemnodontosaurusLydekker 1889
speciesazerguensis

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.

†Temnodontosaurus azerguensis Martin et al. 2012
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Diagnosis
ReferenceDiagnosis
J. E. Martin et al. 2012Temnodontosaurus is characterized by the following combination of characters: extremely slender and elongated rostrum (rostrum/skull length ratio = 0.69); narrow and shallow dental grooves; reduced lunate quadrate (ratio of quadrate anteroposterior length (measured directly dorsal to condyle) to mandible length = 0.066; 0.2199 in T. eurycephalus); reduced dorsal head of the exoccipital (shared with T. platyodon, Godefroit 1993); expanded posterior end of the pterygoid lamellae; elongate humerus (length/mid-shaft width ratio = 2.87); presence of an anterodistal leading edge on the humerus (shared with T. trigonodon, McGowan 1996); elongate femur (axial length/distal width ratio = 0.76) (shared with T. trigonodon, Gaudry 1892); absence of a spatium interosseum between tibia and fibula (shared with T. trigonodon, Bottcher 1989).
Measurements
No measurements are available
Composition: hydroxyapatiteo
Environment: marineo
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Reproduction: viviparouso
Created: 2009-07-20 06:07:40
Modified: 2010-02-23 00:20:57
Source: o = order
Reference: Kiessling 2004

Age range: Middle Toarcian or 182.90000 to 180.40000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Toarcian182.9 - 180.4France (Rhone) Temnodontosaurus azerguensis (type locality: 133652)