Profil taxonu
The species is named in honour of the Romanian palaeontologist Prof. Constantin Radulescu.
The body size is similar to that of modern European red deer. Antlers are thin and large, with distal crown transformed into a small palmation divided into two lobes terminated with tines. The antler beam cross-section is oval. The basal tine is situated at a long distance from the burr: the basal ramification height 2-3 times exceeds the antler base diameter. Lower fourth premolar (P4) is simple.
The species is distinguished from Eucladoceros ctenoides and Eucladoceros dicranios by a different antler bauplan: the antler crown in Rucervus radulescui is formed by up to three tines—which may be bifurcated—inserted on the posterior side of the distal portion of the beam. The antler crown in Eucladoceros is formed by three to five crown tines inserted on the anterior side of the antler beam. Unlike Eucladoceros, Rucervus radulescui does not possess the accessory prong situated somewhat medially in the area of the first ramification.
Rucervus radulescui is distinguished from Rucervus simplicidens/colberti from the Siwalik fauna by the relatively high position of the first ramification, the relatively shorter crown segment of antler (the part of antler beam that bears the crown tines), and the palmated distal portion of antler. The new species is distinguished from Rucervus ardei (Croizet & Jobert, 1828) from the Late Pliocene of Perrier-Etouaires (France) by the absence of small additional prong on the basal tine, somewhat divergent pedicles, and practically complete reduction of lingual cingulum in upper molars. Unlike both Arvernoceros ardei from and Rucervus simplicidens/colberti, the new species is characterized by the pronouncedly oval cross-section of the beam.
Rucervus radulescui is distinguished from Rucervus verestchagini (David, 1992) from the Early Pleistocene of Salcia (Moldova) by significantly smaller body size, simple cylinder-shaped first tine (not flattened and trifurcated as in Rucervus verestchagini), and the well-developed distal palmation.
Rucervus radulescui is distinguished from Rucervus simplicidens/colberti from the Siwalik fauna by the relatively high position of the first ramification, the relatively shorter crown segment of antler (the part of antler beam that bears the crown tines), and the palmated distal portion of antler. The new species is distinguished from Rucervus ardei (Croizet & Jobert, 1828) from the Late Pliocene of Perrier-Etouaires (France) by the absence of small additional prong on the basal tine, somewhat divergent pedicles, and practically complete reduction of lingual cingulum in upper molars. Unlike both Arvernoceros ardei from and Rucervus simplicidens/colberti, the new species is characterized by the pronouncedly oval cross-section of the beam.
Rucervus radulescui is distinguished from Rucervus verestchagini (David, 1992) from the Early Pleistocene of Salcia (Moldova) by significantly smaller body size, simple cylinder-shaped first tine (not flattened and trifurcated as in Rucervus verestchagini), and the well-developed distal palmation.
Autor: Roman Croitor
Odkazy a literatura
http://www.mdpi.com/2571-550X/1/2/17
[jako Rucervus radulescui]
CROITOR, R. 2018. A Description of Two New Species of the Genus Rucervus (Cervidae, Mammalia) from the Early Pleistocene of Southeast Europe, with Comments on Hominin and South Asian Ruminants Dispersals. Quaternary, 1 (2), 17 p.
CROITOR, R. 2018. A Description of Two New Species of the Genus Rucervus (Cervidae, Mammalia) from the Early Pleistocene of Southeast Europe, with Comments on Hominin and South Asian Ruminants Dispersals. Quaternary, 1 (2), 17 p.
Alekseyeva, L.I. 1977. Early Anthropogene Theriofauna of East Europe. Trans. Geol. Inst., 300, 1–214. (In Russian) [jako Cervus philisi]
Croitor, R. Systematical Position and Evolution of the Genus Arvernoceros (Cervidae, Mammalia) from Plio-Pleistocene of Eurasia. Muzeul Olteniei Craiova Oltenia Studii si communicari S tiintele Naturii 2009, 25, 375–382. [jako Arvernoceros sp.]
Curran, S.C. Exploring Eucladoceros ecomorphology using geometric morphometrics. Anatom. Rec. 2015, 298, 291–313. [jako Eucladoceros sp.]
Kostopoulos, D.S.; Athanassiou, A. In the shadow of bovids: Suids, cervids and giraffids from the Plio-Pleistocene of Greece. Quaternaire Hors-Serie 2005, 2, 179–190. [jako Eucladoceros ctenoides]
Radulescu, C.; Samson, P.M. The Plio-Pleistocene Mammalian Succession of the Olteț Valley, Dacic Basin, Romania. Quartärpaläontologie 1990, 8, 225–232. [jako Eucladoceros sp.]
Titov, V.V. Late Pliocene large mammals from Northeastern Sea of Azov Region; SSC RAS Publishing: Rostov-upon-Don, Russia, 2008; p. 264, ISBN 978-902982-47-0. (In Russian) [jako Arvernoceros sp.]