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Stylidens hookeri

Morganucodonta

Taxonomy
Stylidens hookeri was named by Butler and Sigogneau-Russel (2016). Its type specimen is NHM M84127, a tooth (right lower molar), and it is a 3D body fossil. Its type locality is Watton Cliff (West Cliff), Dorset, which is in a Bathonian crevasse splay mixed carbonate-siliciclastic in the Forest Marble Formation of the United Kingdom. It is the type species of Stylidens.

Synonymy list
YearName and author
2016Stylidens hookeri Butler and Sigogneau-Russel p. 42 figs. Fig. 1C

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
orderMorganucodontaKermack et al. 1973
genusStylidens
specieshookeri

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.

†Stylidens hookeri Butler and Sigogneau-Russel 2016
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Diagnosis
ReferenceDiagnosis
P. M. Butler and D. Sigogneau-Russel 2016 Lower molar with cusps a and b acutely conical. Sulcus between a and c wider than be- tween a and b, and continuous with a vertical groove on the labial side. Differs from other morganucodon- tans, including Cherwellia, by the height and disposition of the cusps, recalling the situation in Amphilestes Owen, 1859, but differing from the latter in the asymmetrical crown, the transverse disposition of b, the indication of a g cusp, and the type of occlusal relations.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Life habit: scansorialuc
Diet: insectivoreuc
Created: 2011-04-24 23:35:11
Modified: 2011-04-24 08:35:11
Source: c = class, subp = subphylum, uc = unranked clade
References: Carroll 1988, Luo et al. 2003, Hendy et al. 2009

Age range: Late/Upper Bathonian or 167.70000 to 164.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Bathonian167.7 - 164.7United Kingdom (England) Stylidens hookeri (type locality: 57124)