Hipparion aff. gromovae GABUNIA , 1959

Tesakov, Alexey S., Titov, Vadim V., Simakova, Alexandra N., Frolov, Pavel D., Syromyatnikova, Elena V., Kurshakov, Sergey V., Volkova, Natalia V., Trikhunkov, Yaroslav I., Sotnikova, Marina V., Kruskop, Sergey V., Zelenkov, Nikita V., Tesakova, Ekaterina M. & Palatov, Dmitry M., 2017, Late Miocene (Early Turolian) Vertebrate Faunas And Associated Biotic Record Of The Northern Caucasus: Geology, Taxonomy, Palaeoenvironment, Biochronology, Fossil Imprint 73 (3 - 4), pp. 383-444 : 413

Hipparion aff. gromovae GABUNIA, 1959

Text-fig. 15b

M a t e r i a l. m 3 dex, Gaverdovsky (bed 7).

D e s c r i p t i o n. The weakly worn m3 (27.6 × 11.9 mm) belongs to a medium-large hipparion. In the upper third section of the tooth crown, the double knot shows relatively equal lobes, a wide linguaflexid, and with suboval metaconid and metastylid. The outer valley of the ectoflexid penetrates deeply into the neck of the double knot isthmus. The valley almost connects with the linguaflexid. The enamel folding on the preflexid and postflexid is weak. In size and weak folding of the enamel, the tooth resembles that of H. gromovae , characteristic of the Early Maeotian of Eastern Europe ( Gabunia 1959).

Figures

Text-fig. 15. Large mammal remains from Gaverdovsky and Volchaya Balka, Late Miocene, North Caucasus. a – Hipparion cf. moldavicum, SSC-RAS G-1/1, upper right M1–2, occlusal view, Gaverdovsky; b – Hipparion aff. gromovae, SSC-RAS G-1/2, lower right m3, occlusal view, Gaverdovsky; c – Hipparion sp., SSC-RAS G-1/4, lower right m1, occlusal view, Volchaya Balka; d–e – Microstonyx aff. major, SSC-RAS G-1/3, upper left dP4, d – occlusal view, e – lingual view, Volchaya Balka.

Text-fig. 3. Correlation model of the studied sections of Late Miocene deposits. a. Tuapse highway bridge. b. Gaverdovsky. c. Volchaya Balka. 1. reversed polarity; 2. normal polarity; 3. unstudied interval.