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Eucastor tortus
Taxonomy
Castor (Eucastor) tortus was named by Leidy (1858) [subgenus Eucastor]. Its type specimen is USNM 11020, a partial skull (partial palate and rostrum with incisors and right and left P4-M3), and it is a 3D body fossil. Its type locality is Niobrara River (coll. Hayden 1857), which is in a Barstovian/Clarendonian terrestrial horizon in the Loup Fork Formation of Nebraska. It is the type species of Eucastor.
It was recombined as Dipoides tortus by Matthew and Gidley (1904) and Matthew (1909); it was recombined as Eucastor tortus by Allen (1877), Hay (1902), Matthew (1902), Stirton (1935), Voorhies (1990) and Korth (2008).
It was recombined as Dipoides tortus by Matthew and Gidley (1904) and Matthew (1909); it was recombined as Eucastor tortus by Allen (1877), Hay (1902), Matthew (1902), Stirton (1935), Voorhies (1990) and Korth (2008).
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Castor (Eucastor) tortus Leidy p. 23 |
| 1877 | Eucastor tortus Allen p. 449 |
| 1902 | Eucastor tortus Hay p. 722 |
| 1902 | Eucastor tortus Matthew |
| 1904 | Dipoides tortus Matthew and Gidley p. 261 figs. 11 and 12 |
| 1909 | Dipoides tortus Matthew |
| 1935 | Eucastor tortus Stirton |
| 1990 | Eucastor tortus Voorhies |
| 2008 | Eucastor tortus Korth p. 177 |
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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.
†Eucastor tortus Leidy 1858
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Diagnosis
No diagnoses are available