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Chedighaii
Taxonomy
Chedighaii was named by Gaffney et al. (2006).
It was assigned to Bothremydidae by Sullivan et al. (2012) and de la Fuente et al. (2014); and to Bothremydina by Gaffney et al. (2006), Gaffney et al. (2009) and Noto et al. (2022).
It was assigned to Bothremydidae by Sullivan et al. (2012) and de la Fuente et al. (2014); and to Bothremydina by Gaffney et al. (2006), Gaffney et al. (2009) and Noto et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Chedighaii Gaffney et al. p. 84 |
| 2009 | Chedighaii Gaffney et al. p. 1 |
| 2012 | Chedighaii Sullivan et al. |
| 2014 | Chedighaii de la Fuente et al. |
| 2022 | Chedighaii Noto et al. p. 3 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. S. Gaffney et al. 2006 | A bothremydid pleurodire of the tribe Bothremydini with the following unique feature within Bothremydini: vomer widely separated frommaxilla, associated with large apertura narium interna, in contrast to vomer-maxilla nearly or in contact, as in all other Bothremydini; other differentiating characters: anterior projection of prefrontal present, in contrast to Foxemys, Polysternon, and Rosasia; apertura narium externa facing anterodorsally to a greater extent than in Bothremys and other Bothremydini (except possibly the incomplete Zolhafah); orbit small, as in Bothremys and in contrast to all other Bothremydini; orbits face strongly upward, as in Bothremys and in contrast to other Bothremydini; prefrontal-palatine contact present, as in Bothremys and Araiochelys and in contrast to all other Bothremydini; dorsal process of maxilla narrow, in contrast to Bothremys but in common with all other Bothremydini; sulcus palatinopterygoideus low, as in Bothremys but in contrast to all other Bothremydini; fossa orbitalis enlarged posteriorly, as in Bothremys, Araiochelys, and Rosasia and in contrast to Foxemys and Zolhafah; ridge forming lower margin of orbital rim high, as in Bothremys arabicus, Polysternon, Zolhafah, Rosasia, and Araiochelys but in contrast to other Bothremys species; suborbital maxillary plate deep, as in Bothremys and in contrast to all other Bothremydini; triturating surface pit absent; no exposure of jugal on triturating surface; midline depression on ventral surface of premaxilla very wide, as in Bothremys arabicus and Zolhafah and in contrast to other Bothremys, Rosasia, and Araiochelys; fossa pterygoidea absent; incisura columellae auris closed; foramen posterius canalis carotici interni formed by pterygoid and quadrate; basisphenoid-quadrate contact very narrow, as in Bothremys and in contrast to all other Bothremydini; lower jaws with triturating surface pits; shell (known only from C. barberi) typical of Bothremydina, pectoral scales well posterior to epiplastra, in contrast to Foxemydina; pectoral scales in contact with mesoplastra, in contrast to Foxemydina and Araiochelys; peripheral 1 contact to costal 1 wide, as in Rosasia and in contrast to narrow in Foxemydina and Araiochelys; anterior lobe of plastron does not reach anterior carapace margin, as in Rosasia and the Foxemydina and in contrast to the Cearachelyini. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Carroll 1988, Uetz 2005, Hendy et al. 2009 | |||||
Age range: base of the Turonian to the top of the Early/Lower Campanian or 93.90000 to 70.60000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Turonian | USA (New Jersey) | Bothremys sp. (129837) | |
| Late/Upper Santonian - Middle Campanian | USA (Georgia) | Bothremys barberi, C. barberi (35289) C. barberi (129838) | |
| Early/Lower Campanian | USA (Arkansas) | C. barberi (129834 129835) | |
| Early/Lower Campanian | USA (Alabama) | C. barberi (224274) | |
| Early/Lower Campanian - Middle Campanian | USA (Alabama) | C. barberi (128414) | |
| Early/Lower Campanian - Middle Campanian | USA (North Carolina) | C. barberi (129839) C. sp. (128412) C. sp., C. hutchisoni, Baena sp. (57918) | |
| Late/Upper Campanian | USA (New Jersey) | Bothremys barberi (14455) | |
| Late/Upper Campanian | Mexico (Coahuila) | C. hutchisoni (154244) | |
| Late/Upper Campanian | USA (New Mexico) | C. hutchisoni (56625) |