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Bayshinoryctes shuvalovi
Taxonomy
Bayshinoryctes shuvalovi was named by Lopatin and Averianov (2023). Its type specimen is PIN 5896/1, a partial skull, and it is a 3D body fossil. Its type locality is Bayshin-Tsav [SMPE] (PIN coll. 100), which is in a Turonian/Santonian terrestrial horizon in the Baynshire Formation of Mongolia. It is the type species of Bayshinoryctes.
Entered
by M. Carrano on 2026-04-01; modified by M. Carrano on 2026-04-01
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Bayshinoryctes shuvalovi Lopatin and Averianov pp. 2-3 |
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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.
†Bayshinoryctes shuvalovi Lopatin and Averianov 2023
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. V. Lopatin and A. O. Averianov 2023 | Similar to Maelestes and differs from all other known Cretaceous eutherians by the following combination of characters: P5 metacone absent, M1 metacone much smaller than the paracone, M1 constricted at conular region, M1 pre- and postcingulum present, lower canine large, procumbent and single-rooted, p1 single-rooted, p2 semiprocumbent, p3 smaller than p2 and p4, small cingular mesial accessory cusps on p4 and p5, lower molars with trigonid distinctly higher than talonid, paraconid low, metaconid and protoconid similar in height, talonid subequal to trigonid in width, and m3 talonid long and narrow. Differs from Maelestes by three-rooted P4, P4 metastyle and protocone larger, P4 labial margin straight to concave, P5 with deep ectoflexus, double-rooted p3, and p5 with metaconid swelling. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988, Ji et al. 2002, Lillegraven 1979 | |||||
Age range: base of the Late/Upper Turonian to the top of the Late/Upper Santonian or 93.90000 to 83.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Turonian - Late/Upper Santonian | Mongolia (Omnogov) | Bayshinoryctes shuvalovi (type locality: 67974) |