Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Peckemys brinkman was named by Lyson and Joyce (2009). Its type specimen is UMMP 20490, a skeleton (an almost complete skeleton), and it is a 3D body fossil. Its type locality is Near Fort Peck (Peckemys brinkman type locality), which is in a Maastrichtian terrestrial horizon in the Hell Creek Formation of Montana.
It was recombined as Cedrobaena brinkman by Joyce and Lyson (2015) and Lyson et al. (2016).
It was recombined as Cedrobaena brinkman by Joyce and Lyson (2015) and Lyson et al. (2016).
Synonymy list
Year | Name and author |
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2009 | Peckemys brinkman Lyson and Joyce pp. 836-848 figs. 4-11 |
2015 | Cedrobaena brinkman Joyce and Lyson |
2016 | Cedrobaena brinkman Lyson et al. |
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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.
†Cedrobaena brinkman Lyson and Joyce 2009
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Diagnosis
Reference | Diagnosis | |
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T. R. Lyson and W. G. Joyce 2009 | Diagnosed as being part of Baenidae by the location of the foramen posterius canalis carotici interni between the pterygoid and halfway along basisphenoid; triturating surface moderately expanded with lingual ridge reduced posteriorly; and well developed pterygoid and basioccipital contact. Member of Plesiobaena/Palatobaena grade based on greater development of parietal overlying crista supraoccipitalis compared to E. cephalica, S. estesi, and Pa. cohen; deep temporal emargination; no incipient secondary palate; short preorbital skull length compared to Boremys spp. and E. cephalica; jugal exposed in orbital margin. Autapomorphies include: bar between orbit and cheek emargination less than half the diameter of the orbit; small squamosal and quadratojugal contact. |
Measurements
No measurements are available
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Source: c = class, subp = subphylum, uc = unranked clade | |||||
References: Hendy et al. 2009, Carroll 1988 |
Age range: Late/Upper Maastrichtian or 70.60000 to 66.00000 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Lancian | USA (Colorado) | Peckemys brinkman (96082) | |
Late/Upper Maastrichtian | USA (Wyoming) | Peckemys brinkman (14585) | |
Late/Upper Maastrichtian | USA (Montana) | Testudinata sp. (type locality: 122906) | |
Late/Upper Maastrichtian | USA (North Dakota) | Peckemys brinkman (122903) |