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Paciculus
Taxonomy
Paciculus was named by Cope (1879) [orig. listed here as Hayden 1882 but first appears in Cope 1879.]. Its type is Paciculus insolitus.
It was assigned to Cricetinae by Hay (1902); to Myomorpha by Hibbard (1939); to Cricetidae by Cope (1879), McKenna and Bell (1997), Korth (2014); and to Leidymini by Lindsay et al. (2016).
It was assigned to Cricetinae by Hay (1902); to Myomorpha by Hibbard (1939); to Cricetidae by Cope (1879), McKenna and Bell (1997), Korth (2014); and to Leidymini by Lindsay et al. (2016).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1879 | Paciculus Cope |
| 1902 | Paciculus Hay p. 727 |
| 1939 | Paciculus Hibbard |
| 1997 | Paciculus McKenna and Bell |
| 2014 | Paciculus Korth p. 394 |
| 2016 | Paciculus Lindsay et al. p. 82 |
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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.
G. †Paciculus Cope 1879
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†Paciculus cedrus Korth 2014
†Paciculus insolitus Cope 1879
†Paciculus montanus Black 1961
†Paciculus nebraskensis Alker 1969
†Paciculus walshi Lindsay et al. 2016
†Paciculus woodi Macdonald 1963
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. W. Hibbard 1939 | In the P. lockingtonianus the cranial characters are as follows: The infraorbital foramen is very large, with a general triangular outline. The superciliary borders and temporal ridges are well separated, and there is no sagittal crest. There are no postorbital processes. The otic bullae are large, and furnished with a very large meatus auditorius externus. The malar is a narrow bone extending to the glenoid cavity posterirly, and resting anteriorly on a prominent peduncle composed of the maxillary bone. It probably reaches the lachrymal. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Nowak 1999, Carroll 1988, Ji et al. 2002, Lillegraven 1979, Hendy et al. 2009 | |||||
Age range: base of the Whitneyan to the top of the Piacenzian or 31.80000 to 2.58000 Ma
Collections (28 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Oligocene | USA (Montana) | P. montanus (235275) | |
| Whitneyan | USA (South Dakota) | P. nebraskensis, P. cedrus (170168) | |
| Whitneyan - late Early Arikareean | USA (California) | P. sp. (17527) | |
| Geringian | USA (Nebraska) | P. insolitus (17495) | |
| Geringian | USA (South Dakota) | Eumys woodi (17610 17635 17641 17642 17654) | |
| Arikareean | USA (Nevada) | P. sp. (17600) | |
| Arikareean | USA (Montana) | P. sp. (17543 17700) | |
| Arikareean | USA (Idaho) | P. insolitus (17584) | |
| Arikareean | USA (Nebraska) | P. nebraskensis (17598) | |
| Arikareean | USA (Oregon) | P. sp. (212628) | |
| Chattian | USA (Oregon) | P. sp. (17603 93079) | |
| Monroecreekian | USA (Nebraska) | P. nebraskensis (67637) | |
| Monroecreekian | Canada (Saskatchewan) | P. nebraskensis (17526) | |
| Monroecreekian | USA (South Dakota) | P. montanus (17561 17564) P. sp. (67636) | |
| Harrisonian | USA (Nebraska) | P. nebraskensis (17802 17816 69807) P. sp. (17843) | |
| Hemingfordian | USA (South Dakota) | P. montanus (17877) | |
| Piacenzian | USA (Florida) | Trichechodon huxleyi (22712) |