Revision of the European species of Prosantorhinus HEISSIG, 1974 (Mammalia, Perissodactyla, Rhinocerotidae)
| Stránky | 236-274 |
|---|---|
| DOI | 10.2478/if-2017-0014 |
| Klíčová slova | Teleoceratini, Prosantorhinus, Diaceratherium, morphology, proportion indices, Early Miocene, Middle Miocene, Central Europe, Western Europe |
| Citace | HEISSIG, Kurt. Revision of the European species of Prosantorhinus HEISSIG, 1974 (Mammalia, Perissodactyla, Rhinocerotidae). Fossil Imprint / Acta Musei Nationalis Pragae, Series B – Historia Naturalis. Prague: National Museum, 2017, 73(3-4), 236-274. DOI: https://doi.org/10.2478/if-2017-0014. ISSN 2533-4050 (tisk), 2533-4069 (online). Also available from: https://publikace.nm.cz/periodicals/fiamnpsbhn/73-3-4/revision-of-the-european-species-of-prosantorhinus-heissig-1974-mammalia-perissodactyla-rhinocerotidae |
It is not size that distinguishes the genus Prosantorhinus HEISSIG, 1974 from Diaceratherium DIETRICH, 1931, but the following characters: a concave dorsal skull profi le with upslanting nasals and narrowing on the distal side of the last upper molar.
Using these characters, in addition to the type species Prosantorhinus germanicus (WANG, 1929), the following species can be added to the genus: Prosantorhinus douvillei (OSBORN, 1900) (Heissig 1972a: 69, Cerdeño 1996:112 ff.), from the Early and Middle Miocene (MN 3–5) of Western Europe, Prosantorhinus laubei HEISSIG et FEJFAR, 2007 from MN 3 of northern Bohemia, Prosantorhinus aurelianensis (NOUEL, 1866) from MN 3–4a of Western Europe, and with some reservation “Rhinoceros” tagicus ROMAN et TORRES, 1907 (Heissig 1972a: 69), an enigmatic species from the Early Miocene (MN 3) of Portugal, known only by its upper cheek teeth.
At the beginning of MN 3 (Mein 1989), the metapodials of Prosantorhinus aurelianensis were considerably more robust than those of the latest Diaceratherium species (Laugnac, MN 2b) (de Bonis 1973: 128 ff.) Within the genus shortening of the distal limb segments and narrowing of the distal side of M3 increased with time. The metapodials of Prosantorhinus laubei are less robust but of medium length, in contrast to the Middle Miocene (MN 5) Prosantorhinus germanicus in which they are extremely shortened.
No transitional species or co-occurrence of Diaceratherium and Prosantorhinus are known.
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