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Dearcmhara

Reptilia

Taxonomy

Species
D. shawcrossi (type species)

Synonymy list
YearName and author
2015Dearcmhara Brusatte et al. figs. 5, 7

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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()
Ichthyosauromorpha
Ichthyosauriformes
Ichthyopterygia(Owen 1840)
Eoichthyosauria
Ichthyosauria(de Blainville 1835)
Parvipelvia
NeoichthyosauriaSander 2000
genusDearcmhara

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.

G. †Dearcmhara Brusatte et al. 2015
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Dearcmhara shawcrossi Brusatte et al. 2015
Diagnosis
ReferenceDiagnosis
S. L. Brusatte et al. 2015Basal neoichthyosaurian ichthyosaur with the following unique combination of characters, with autapomorphies among basal neoichthyosaurians indicated with an asterisk (all on the humerus): presence of an anterodistal leading edge facet (shared with Temnodontosaurus and Leptonectidae, although this facet is variably present within both clades); a deep concavity within the leading edge of the anterodistal facet*; large and triangular supraulnar process*; waisted humeral shaft, with the leading edge having a pronounced concavity, whereas the posterior edge is much more weakly concave (shared with Temnodontosaurus and Excalibosaurus); in lateral view, the distal margin of the ulnar facet is strongly concave, whereas the distal margin of the radial facet is straight to weakly convex (shared with Temnodontosaurus, but this morphology is variable within Leptonectidae).
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: base of the Toarcian to the top of the Early/Lower Bajocian or 182.70000 to 168.40000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Toarcian - Early/Lower Bajocian182.7 - 168.4United Kingdom (Scotland) D. shawcrossi (165073)