| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Procolpochelys grandaeva
Taxonomy
Chelone grandaeva was named by Leidy (1861). It is a 3D body fossil. Its type locality is Shiloh Marl, which is in a Burdigalian marginal marine marl in the Kirkwood Formation of New Jersey.
It was recombined as Chelonia grandaeva by Leidy (1851); it was recombined as Puppigerus grandaevus by Cope (1870), Cope (1875) and Hay (1902); it was recombined as Procolpochelys grandaeva by Hay (1930), Zug (2001), Weems and Sanders (2014), Weems and Brown (2017), Hastings and Dooley (2017) and Weems (2023).
It was recombined as Chelonia grandaeva by Leidy (1851); it was recombined as Puppigerus grandaevus by Cope (1870), Cope (1875) and Hay (1902); it was recombined as Procolpochelys grandaeva by Hay (1930), Zug (2001), Weems and Sanders (2014), Weems and Brown (2017), Hastings and Dooley (2017) and Weems (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1851 | Chelonia grandaeva Leidy p. 329 |
| 1856 | Chelone grandaeva Leidy p. 303 |
| 1861 | Chelone grandaeva Leidy p. 203 |
| 1865 | Chelone grandaeva Leidy |
| 1870 | Puppigerus grandaevus Cope p. 235 |
| 1875 | Puppigerus grandaevus Cope p. 363 |
| 1902 | Puppigerus grandaevus Hay p. 443 |
| 1930 | Procolpochelys grandaeva Hay p. 80 |
| 2001 | Procolpochelys grandaeva Zug p. 204 figs. Table 1 |
| 2014 | Procolpochelys grandaeva Weems and Sanders p. 88 |
| 2017 | Procolpochelys grandaeva Hastings and Dooley p. 83 |
| 2017 | Procolpochelys grandaeva Weems and Brown |
| 2023 | Procolpochelys grandaeva Weems |
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.
†Procolpochelys grandaeva Leidy 1861
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. E. Weems 2023 | Large cheloniid turtle with carapace up to 1.5 m (5 feet) long. Neurals 2–6 often are divided into front and back portions, with neural arches of thoracic vertebrae attached to the smaller posterior part of each split neural. Costals are laterally compressed but anteroposteriorly expanded, lacking surface sculpture and possessing only faintly impressed sulcal grooves marking the borders of dermal scutes; carapace surface smooth without raised longitudinal ridges; juveniles have relatively thin costals (about 5 mm thick), but with advancing age costals thicken greatly (up to 20 mm thick); costoperipheral fontanelles large, even in adults. Plastron strongly reduced, becoming increasingly so with advancing age. Humerus most similar to Caretta among living cheloniids, with lateral tubercle short and wide, dorsomedial muscle scar round and shallow, and the deltopectoral crest quite prominent and coalesced. Snout of Procolpochelys grandaeva is short and rather pointed; in ventral view, the foramina orbito-nasale are relatively large, and the pterygoids are correlatively quite narrow.
|
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: superf = superfamily, subo = suborder, c = class, subp = subphylum | |||||
| References: Uetz 2005, Hendy et al. 2009, Bush and Bambach 2015, Carroll 1988 | |||||
Age range: base of the Late/Upper Maastrichtian to the top of the Tortonian or 70.60000 to 7.24600 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Maastrichtian | USA (New Jersey) | Chelone grandaeva (129264) | |
| Burdigalian | USA (Maryland) | Procolpochelys grandaeva (71810) | |
| Langhian | USA (Maryland) | Procolpochelys grandaeva (70818 70819) | |
| Serravallian | USA (Virginia) | Procolpochelys grandaeva (57700) | |
| Serravallian | USA (Maryland) | Procolpochelys grandaeva (70822 70835) | |
| Tortonian | USA (Maryland) | Procolpochelys grandaeva (219172) |