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Taxonomy
Allorattus engesseri was named by Qiu and Storch (2000). Its type specimen is IVPP V11935, a tooth (M1 sup. dext.), and it is not a trace fossil. Its type locality is Bilike, which is in a Pliocene lacustrine horizon in China. It is the type species of Allorattus.
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Allorattus engesseri Qiu and Storch p. 201 figs. Pl. 9, fig. 24 |
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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.
†Allorattus engesseri Qiu and Storch 2000
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Z. Qiu and G. Storch 2000 | Rather large-sized murid. On M1 and M2, t7 strong and t9 usually lacking or highly reduced (unique trait among murids). On M2, t3 vestigial and on M3 lacking. Molar cusps fused to distinctly confluent transversal rows. M1 and M2 five-rooted, m1 four-rooted. On lower molars, tma tiny and labial accessory cusps or cingulids lacking except for c1 (fused with hypoconid). |