Spalacotherium evansae Ensom & Sigogneau-Russell, 2000
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publication ID |
https://doi.org/ 10.5252/geodiversitas2022v44a25 |
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publication LSID |
urn:lsid:zoobank.org:pub:EA12DCB7-A5BE-4763-B805-25087EBD726D |
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DOI |
https://doi.org/10.5281/zenodo.6928946 |
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persistent identifier |
https://treatment.plazi.org/id/03C887B9-FF87-FFDA-7678-A30EFA74FB9E |
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treatment provided by |
Felipe |
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scientific name |
Spalacotherium evansae Ensom & Sigogneau-Russell, 2000 |
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Spalacotherium evansae Ensom & Sigogneau-Russell, 2000
( Fig. 34A, B View FIG )
DESCRIPTION
Three teeth of Spalacotheriidae have been recognized including two molars, which have the characteristic “symmetrodont” pattern with acute angulation of the principal cusps, seen in other spalacotheriids ( Fig. 34A View FIG ; Kielan-Jaworowska et al. 2004). The best preserved of the molars ANG M-26 lacks the posterior root and the hypoconulid (cusp d) ( Fig. 34A, B View FIG ). The protoconid, the metaconid and the paraconid are welldeveloped. The talonid was probably much reduced. Mesially, a single cusp e is lingually placed on the cingulid ( Fig. 34B View FIG ), and allows the identification of this tooth as a left lower molar. ANG M-26 is very similar, if not identical, to a tooth referred to Spalacotherium evansae (DORC GS 360, Ensom & Sigogneau-Russell 2000). Its smaller size compared to that of the molars of other species of Spalacotherium , the incompleteness of the labial cingulid associated with the equivalent height of the paraconid and metaconid, are diagnostic features (Ensom & Sigogneau-Russell 2000), that allow us to assign this specimen to Spalacotherium evansae . The latter species has been decribed from various localities of the Purbeck Group, including the Berriasian Lulworth Formation at Sunnydown Farm, U.K.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.