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Chitracephalus dumonii
Taxonomy
Chitracephalus dumonii was named by Dollo (1885). Its type specimen is IRSNB R11 and IRSNB R12, a skeleton (an almost complete skeleton), and it is a 3D body fossil. Its type locality is Sainte-Barbe coal mine, Bernissart, which is in a Barremian/Aptian lacustrine - small claystone/bituminous coal in the Sainte-Barbe Clays Formation of Belgium. It is the type species of Chitracephalus.
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1885 | Chitracephalus dumonii Dollo p. 70 |
| 2003 | Salasemys pulcherrima Fuentes et al. |
| 2012 | Chitracephalus dumonii Pérez-García figs. 1-7 |
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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.
†Chitracephalus dumonii Dollo 1885
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Invalid names: Salasemys pulcherrima Fuentes et al. 2003 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Pérez-García 2012 | Cryptodiran turtle with the following autapomorphies: skull very elongate and depressed, with large orbits in antero-dorsal position; temporal area characterized by a very elongated emargination that connects the upper and lower temporal areas; complex ornamentation pattern of the carapace, symmetrical around the axial plane, consisting of numerous bony rods, that converge upon one other, dividing the carapace in thin sub-triangular and sub-rhombic polygons; conical and very narrow anterior area of the hyoplastra, lacking of sutured contact with the epiplastra and the entoplastron. Differing from other representatives of Cryptodira in the following character combination: shell longer than wide, rectangular in shape; low shell; deep notch in the nuchal region; mediolaterally expanded posterior peripherals; short first dorsal rib; ligamentous connection between carapace and plastron; absence of costal-peripheral and bridge fontanelles; presence of central plastral fontanelle; presence of a large xiphiplastral fontanelle; epiplastra very elongate; absence of anal notch; presence of extragular scutes. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Uetz 2005, Hendy et al. 2009, Carroll 1988, Kiessling 2004 | |||||
Age range: base of the Barremian to the top of the Early/Lower Barremian or 125.77000 to 121.40000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Hauterivian - Early/Lower Barremian | Spain (Castilla y León) | Salasemys pulcherrima (131492) | |
| Barremian - Early/Lower Aptian | Belgium (Hainaut) | Chitracephalus dumonii (type locality: 22645) | |
| Barremian - Aptian | Spain (La Rioja) | Salasemys pulcherrima (131493) |