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Taxonomy
Allactaga fru was named by Nesin and Kovalchuk (2017). Its type specimen is NMNHU-P 41/5549, a tooth (l M1), and it is a 3D body fossil. Its type locality is Frunzovka-2, which is in a MN 14 terrestrial siliciclastic in Ukraine.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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2017 | Allactaga fru Nesin and Kovalchuk p. 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.
†Allactaga fru Nesin and Kovalchuk 2017
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Diagnosis
Reference | Diagnosis | |
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V. Nesin and O. Kovalchuk 2017 | A small-sized Allactaga which differs from other extinct and extant species of this genus in the following unique combination of characters: (1) the anterior part of the M1 crown is wider than the main portion of the tooth due to the strong development of anterostyle, anteroloph, and anterocone; (2) the labial arm of the posteroloph is well developed; (3) strongly developed paracone connected with mesocone and mesostyle; (4) metaconid of m1 is isolated on the unworn teeth; (5) entoconid and mesostylid are also sepa- rated; (6) the presence of one major anterior cusp on P4, completely isolated from the posterior ridge (which is arc-shaped). |