The genus was first named by paleontologist Norbert Schmidt-Kittler in 1976 based on the holotype, a partial skull from Akçaköy, Eşme District, Turkey, and a second specimen, a lower jaw from Yeni Eskihisar. The generic name Miomachairodus is a combination of Mio, referring to the Miocene when it lived, and Machairodus; the specific name pseudailuroides means "like Pseudaelurus".[3]
In 2022, material from the Guanigou fauna in the Linxia Basin was described as Miomachairodus sp., and the authors suggested that it represented a new species of Miomachairodus. The fossil, a partial maxilla from the early Late Miocene (early Bahean), represented the oldest known machairodontine in Asia. They refrained from definitively naming the species because it lacked the fourth premolar.[4] The fossil material had previously been assigned to Machairodus palanderi in 2013.[5]
Description
The Miomachairodus sp. from the Linxia Basin is known only from a single fossil (HMV2039), a partial maxilla with the first, second, and third incisors, the canine, and the third premolar present, as well as the alveolus of the second premolar and a broken fourth premolar. The incisors are small and the canine tooth has "distinct but small" serrations. It was distinguished from M. pseudailuroides by having a shorter diastema between the canine and third premolar, and in the differing morphology of the third premolar. The describing paper estimated it was a large carnivoran that weighed more than 100 kilograms (220lb).[4]
Classification
A 2018 phylogenetic analysis recovered Miomachairodus pseudailuroides as basal to most of the rest of Machairodontinae.[6]
↑ Qiu, Z. (1990). "The Chinese Neogene Mammalian Biochronology — Its Correlation with the European Neogene Mammalian Zonation". In Lindsay, H.E.; Fahlbusch, V.; Mein, P. (eds.). European Neogene Mammal Chronology. Plenum Press. pp.527–556. doi:10.1007/978-1-4899-2513-8_32.
↑ Fortelius, Mikael. Geology and paleontology of the Miocene Sinap Formation, Turkey.
↑ Schmidt-Kittler, Norbert (1976). "Raubtiere aus dem Jungtertiär Kleinasiens"[Carnivores from the Late Tertiary of Asia Minor]. Palaeontographica Abteilung A (in German). 155: 107–113.
↑ Deng, T., Hou, S. K., Xie, G. P., Wang, S. Q., Shi, Q. Q., Chen, S. K., ... & Lu, X. K. (2013). "Chronostratigraphic subdivision and correlation of the Upper Miocene of the Linxia Basin in Gansu, China". Journal of Stratigraphy. 37: 417–427.{{cite journal}}: CS1 maint: multiple names: authors list (link)
Viranta, S.; Werdelin, L. (2003). "Carnivora". In Fortelius M.; Kappelman J.; Sen S.; Bernor R. (eds.). Geology and Paleontology of the Miocene Sinap Formation, Turkey. New York: Columbia University Press. pp.178–193.
Viranta, S.; Werdelin, L. (1999). Fossil remains of a primitive sabertooth cat (Miomachairodus pseudailuroides) from Anatolia (Abstr.) Abstracts of 79th Annual Meeting, American Society of Mammalogists.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
