Sayimys intermedius ( SEN et THOMAS, 1979)

Hartman, Julian, Van De Weerd, Andrew A., Bruijn, Hans De & Wessels, Wilma, 2019, An Exceptional Large Sample Of The Early Miocene Ctenodactyline Rodent Sayimys Giganteus, Specific Variation And Taxonomic Implications, Fossil Imprint 75 (3 - 4), pp. 359-382 : 372-373

Sayimys intermedius ( SEN et THOMAS, 1979)

O r i g i n a l c o m b i n a t i o n. Metasayimys intermedius

SEN et THOMAS, 1979.

H o l o t y p e. A part of a left mandible with dp4–m1–m2. Ty p e l o c a l i t y. Al Jadidah ( Saudi Arabia); age of the site: middle Miocene, 14? Ma.

D i s c u s s i o n. This adequately described and figured species by López-Antoñanzas and Sen (2004) is known by its holotype only. Sayimys intermedius is small ( Text-fig. 12 ), Baskin (1996) noted that the length of m1 is not 2.9 mm as described, but 2.09 mm. A mesolophid is neither present on the dp4 nor on the two molars.

Figures

Text-fig. 12. Ranges of the length of the dp4 based on data from the literature. Vertical scale in Ma, the samples are from the Siwaliks (black) and Turkey, Greece and Arabia (red). Type localities of species are indicated with an asterisk. The Y and Z sites are from Baskin (1996), its size ranges are composed of data from several localities and the vertical arrowed broken line indicates the age range of these sites.