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Stylolophus minor
Taxonomy
Stylolophus minor was named by Gheerbrant et al. (2018). Its type specimen is OCP DEK/GE 668, a mandible (right dentary bearing roots of I1–2, alveolae of I3, C1, and P2, and crown of P1, P3–4, and M1–3), and it is a 3D body fossil. Its type locality is Grand Daoui area, Ypresian, which is in a Ypresian marine phosphorite/phosphorite in Morocco. It is the type species of Stylolophus.
Synonymy list
| Year | Name and author |
|---|---|
| 2018 | Stylolophus minor Gheerbrant et al. p. 2 figs. Figs. 1, 2 |
| 2021 | Stylolophus minor Gheerbrant et al. |
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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.
†Stylolophus minor Gheerbrant et al. 2018
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. Gheerbrant et al. 2018 | S. minor shares with the Embrithopoda the hyperdilambdodont morphotypic molar pattern. It differs from all known embritho- pods, including Palaeoamasia, by its very small size and prim- itive state of hyperdilambdodonty, with less lingual paracone and metacone and correlatively shorter pseudolophs (prepara- crista, premetacrista) and with retention of more developed postparacrista, postmetacrista, and pseudohypocone; cheek
teeth with brachyodont low crown; M1–2 with one lingual root and with separated paracone and protocone roots; P2 single- rooted and simple; and P2 double-rooted and simple. Anterior incisors are enlarged (especially their root), and I1 is partially hypsodont. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Ji et al. 2002, Hendy et al. 2009, Lillegraven 1979, Carroll 1988 | |||||