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Taxonomy
Cynarctus acridens was named by Barbour and Cook (1914) [this spelling is DEFINITELY correct]. Its type specimen is HC 144, a mandible, and it is a 3D body fossil. Its type locality is American Museum-Cook Quarry, which is in a Harrisonian terrestrial horizon in the Marsland Formation of Nebraska.
It was recombined as Notharctus acridens by Matthew (1932); it was recombined as Cynarctoides acridens by McGrew (1938), McGrew (1938), Galbreath (1956), Munthe (1988), Wang et al. (1999) and Wang et al. (2008).
It was recombined as Notharctus acridens by Matthew (1932); it was recombined as Cynarctoides acridens by McGrew (1938), McGrew (1938), Galbreath (1956), Munthe (1988), Wang et al. (1999) and Wang et al. (2008).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1914 | Cynarctus acridens Barbour and Cook |
| 1932 | Notharctus acridens Matthew |
| 1932 | Cynarctus mustelinus Matthew p. 2 figs. 2 - 3 |
| 1938 | Cynarctoides acridens McGrew |
| 1956 | Cynarctoides acridens Galbreath |
| 1956 | Cynarctoides mustelinus Galbreath |
| 1988 | Cynarctoides acridens Munthe |
| 1999 | Cynarctoides acridens Wang et al. |
| 2008 | Cynarctoides acridens Wang 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.
†Cynarctoides acridens Barbour and Cook 1914
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Invalid names: Cynarctus mustelinus Matthew 1932 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. D. Matthew 1932 (Cynarctus mustelinus) | Size much less than either C. saxatilis Matthew or C. crucidens Cook and more primitive than either species; the second molar two-thirds the length of m1; in C.
saxatilis of the M. paniensis zone it is nearly three-fourths and in C. crucidens of the Hipparion zone it is approximately seven-eighths as long, the breadth increasing in about the same proportion. The last molar in C. mustelinus is very small, only a third the length of m2; in C. saxatilis it is three-fifths as long, in C. crucidens, over two- thirds. |