| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Osteopygis emarginatus
Taxonomy
Osteopygis emarginatus was named by Cope (1868). Its type specimen is AMNH 1485 and is a 3D body fossil. Its type locality is Barnsboro "greensand" (Hornerstown), which is in a Maastrichtian marginal marine horizon in the Hornerstown Formation of New Jersey. It is the type species of Osteopygis.
It was corrected as Osteopygis emarginata by Cope (1870), Cope (1870).
It was corrected as Osteopygis emarginata by Cope (1870), Cope (1870).
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1868 | Osteopygis chelydrinus Cope p. 147 |
| 1868 | Osteopygis emarginatus Cope p. 147 |
| 1870 | Osteopygis emarginata Cope |
| 1870 | Osteopygis platylomus Cope p. 135 |
| 1870 | Osteopygis chelydrinus Cope p. 138 |
| 1875 | Catapleura chelydrina Cope |
| 1875 | Osteopygis erosus Cope p. 258 |
| 1902 | Osteopygis chelydrinus Hay p. 441 |
| 1902 | Osteopygis emarginatus Hay p. 441 |
| 1902 | Osteopygis erosus Hay p. 441 |
| 1902 | Osteopygis platylomus Hay p. 441 |
| 1904 | Osteopygis gibbi Wieland |
| 1908 | Amblypeza entellus Hay pp. 122-123 figs. Figs. 125-132 |
| 1908 | Osteopygis emarginatus Hay p. 129 figs. Telt-figs. 134-141 |
| 1908 | Osteopygis gibbi Hay p. 132 figs. Plate 26, fig. 1; plate 27, figs. I, z; text-figs. 142-146 |
| 1908 | Osteopygis robustus Hay p. 134 figs. figs 147-151 |
| 1908 | Osteopygis chelydrinus Hay pp. 136-137 figs. Plate 23, figs. 4-7; plate 28, figs. 1-4; text-figs. 152-154 |
| 1908 | Osteopygis erosus Hay pp. 138-139 figs. Plate 26, fig. 2; text-figs. 155-162 |
| 1908 | Osteopygis platylomus Hay p. 146 figs. figs 172-180 |
| 1930 | Amblypeza entellus Hay p. 75 |
| 1930 | Osteopygis chelydrinus Hay p. 76 |
| 1930 | Osteopygis emarginatus Hay p. 76 |
| 1930 | Osteopygis erosus Hay p. 76 |
| 1930 | Osteopygis gibbi Hay p. 76 |
| 1930 | Osteopygis platylomus Hay p. 76 |
| 1930 | Osteopygis robustus Hay p. 76 |
| 1953 | Osteopygis emarginatus Zangerl p. 208 |
| 1988 | Osteopygis emarginatus Weems p. 115 |
| 2005 | Osteopygis emarginatus Parham p. 76 |
| 2023 | Osteopygis emarginatus Gentry et al. |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Osteopygis emarginatus Cope 1868
show all | hide all
Invalid names: Amblypeza entellus Hay 1908 [synonym], Catapleura chelydrina Cope 1875 [synonym], Osteopygis borealis Wieland 1904 [synonym], Osteopygis chelydrinus Cope 1868 [synonym], Osteopygis erosus Cope 1875 [synonym], Osteopygis gibbi Wieland 1904 [synonym], Osteopygis platylomus Cope 1870 [synonym], Osteopygis robustus Hay 1908 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. D. Gentry et al. 2023 | O. emarginatus can be diagnosed as a representative of Osteopygis by the set of shell characters listed for the genus above. O. emarginatus can be differentiated from other species of Osteopygis by having a carapace that tapers in width at both the anterior and posterior ends, broad contact between the first vertebral and second marginal scales, a laterally expanded ninth neural, proportionally shorter plastral buttresses, a proportionally smaller second suprapygal, and by lacking anterior peripherals with upturned lateral margins. |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Late/Upper Campanian to the top of the Clarkforkian or 83.60000 to 54.90000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Campanian | USA (South Carolina) | Osteopygis emarginatus (180790) | |
| Late/Upper Campanian - Early/Lower Maastrichtian | USA (New Jersey) | Osteopygis emarginatus (52504 221052) | |
| Late/Upper Maastrichtian | USA (New Jersey) | Osteopygis emarginatus, Osteopygis chelydrinus, Osteopygis erosus (type locality: 167780) Osteopygis emarginatus, Osteopygis gibbi (48570) Osteopygis platylomus, Osteopygis robustus (87902) | |
| Maastrichtian | USA (New Jersey) | Osteopygis emarginatus (78124) | |
| Maastrichtian | USA (Maryland) | Osteopygis emarginatus (27563 27564) | |
| Late/Upper Maastrichtian - Early/Lower Paleocene | USA (New Jersey) | Osteopygis platylomus (128429) | |
| Danian | USA (South Carolina) | Osteopygis emarginatus (115152) | |
| Clarkforkian | USA (South Carolina) | Osteopygis emarginatus (15074) | |
| Eocene | USA (New Jersey) | Propleura sopita (84043) |