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Bathyopsis
Taxonomy
Bathyopsis was named by Cope (1881). Its type is Bathyopsis fissidens.
It was assigned to Dinocerata by Cope (1881); to Bathyopsidae by Hay (1902); to Uintatheriidae by Dorr (1958); to Bathyopsinae by Wheeler (1961); to Bathyopsini by Schoch and Lucas (1985); and to Uintatheriinae by Lucas and Schoch (1998).
It was assigned to Dinocerata by Cope (1881); to Bathyopsidae by Hay (1902); to Uintatheriidae by Dorr (1958); to Bathyopsinae by Wheeler (1961); to Bathyopsini by Schoch and Lucas (1985); and to Uintatheriinae by Lucas and Schoch (1998).
Species
B. fissidens (type species), B. middleswarti
Synonymy list
| Year | Name and author |
|---|---|
| 1881 | Bathyopsis Cope p. 194 |
| 1902 | Bathyopsis Hay p. 700 |
| 1958 | Bathyopsis Dorr, Jr. p. 515 |
| 1961 | Bathyopsis Wheeler pp. 23 - 24 |
| 1985 | Bathyopsis Schoch and Lucas p. 43 |
| 1998 | Bathyopsis Lucas and Schoch p. 287 |
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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. †Bathyopsis Cope 1881
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†Bathyopsis fissidens Cope 1881
†Bathyopsis middleswarti Wheeler 1961
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. H. Wheeler 1961 | Small to medium-sized uintathere. Trigonids high, small P, present. Metastylid strong and closely appressed to trigonid. Entoconid not notably distinct. No hypoconulid crest. Paraconid crest much reduced. Jaws very deep with strong inframandibular process sloping evenly backward and upward to the angle. Lower molars not as elongate as in Probathyopsis.
Cranial table only slightly basined, horns rudimentary. Skull not deep. Temporal fossa visible from above. No sagittal crest. | |
| R. M. Schoch and S. G. Lucas 1985 | Same as that for the Bathyopsini. Relatively small uintatheriines with small horns and a vestigial P/1 pre sent (variable?) (p).] |
Measurements
No measurements are available
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| Source: o = order, c = class, subp = subphylum | |||||
| References: Hopson 1973, Lucas and Schoch 1998, Hendy et al. 2009, Carroll 1988 | |||||
Age range: base of the Wasatchian to the top of the Bridgerian or 55.80000 to 46.20000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lostcabinian | USA (Wyoming) | B. fissidens (15915 16078) B. sp. (15903) | |
| Wasatchian | USA (Wyoming) | B. fissidens (15710 15839) | |
| Bridgerian | USA (Wyoming) | B. fissidens (16207) B. middleswarti (16094 16116 16307 16371 16375 16382 16387 16410) B. sp. (15837 16415 16486) | |
| Bridgerian | USA (Colorado) | B. fissidens (16241) B. sp. (16239) |