Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Dearcmhara
Taxonomy
Dearcmhara was named by Brusatte et al. (2015). Its type is Dearcmhara shawcrossi.
It was assigned to Neoichthyosauria by Brusatte et al. (2015).
It was assigned to Neoichthyosauria by Brusatte et al. (2015).
Species
D. shawcrossi (type species)
Synonymy list
Year | Name and author |
---|---|
2015 | Dearcmhara Brusatte et al. figs. 5, 7 |
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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.
Diagnosis
Reference | Diagnosis | |
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S. L. Brusatte et al. 2015 | Basal 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
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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 Bajocian | United Kingdom (Scotland) | D. shawcrossi (165073) |