Meldimys Michaux, 1968
publication ID |
https://doi.org/ 10.4202/app.2008.0101 |
persistent identifier |
https://treatment.plazi.org/id/03DA87A9-FFD2-FFAD-3AD0-54A6B5B09D6B |
treatment provided by |
Felipe |
scientific name |
Meldimys Michaux, 1968 |
status |
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Genus Meldimys Michaux, 1968
Type species: Meldimys louisi (Michaux, 1964) , early Eocene (middle Ypresian) of Avenay, Paris Basin, France .
Revised diagnosis.—Smaller than Ailuravus and North− American ailuravines, and about the same size as the most primitive ailuravine Euromys . Differs from other ailuravines in having lower−crowned cheek teeth with more rounded cusps, noticeably less developed hypocone and less pronounced lingual sinus in P4–M3, more globular P4 with less developed anteroloph and posteroloph but better developed mesostyle, and p4 with metaconid markedly less developed than protoconid. Further differs from Ailuravus and Euromys in having upper molars with typical tetrahedral paracone and occlusal surface markedly more curved along the antero−posterior median line, and lower molars with hypoconulid nearly merged into posterolophid. Upper cheek teeth with short crest descending from protocone into trigon basin (this crest absent in Ailuravus ). Lower cheek teeth with mesoconid connected to hypoconid, in contrast to Euromys , which has mesoconid completely separated from both hypoconid and metaconid.
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