Hemimachairodus

Hemimachairodus is an extinct genus of saber-tooth cat of the tribe Machairodontini and subfamily Machairodontinae. The type species, Hemimachairodus zwierzyckii was previously assigned to the genus Homotherium,[1] and was originally described a member of the genus Epimachairodus as Epimachairodus zwierzyckii.[2]

Hemimachairodus
Temporal range:
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Feliformia
Family: Felidae
Subfamily: †Machairodontinae
Tribe: †Machairodontini
Genus: †Hemimachairodus
Koenigswald, 1974
Type species
Hemimachairodus zwierzyckii
(von Koenigswald, 1934)
Synonyms
  • Epimachairodus zwierzyckii von Koenigswald, 1934
  • Machairodus zwierzyckii

The specific epithet was given in honor of the Polish geologist Józef Zwierzycki.[3]

Fossil segments of Hemimachairodus were unearthed in Pleistocene dig sites in Java in Indonesia alongside other predators such as Panthera tigris, Homotherium ultimum, and Megacyon merriami, and it most likely competed with these species for prey. H. zwierzyckii was estimated by one study to have weighed about 130kg[4]

References
  1. von Koenigswald, G.H.R. (1974). "Fossil mammals of Java part 6 Machairodontinae from the lower Pleistocene of Java". Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen Series B Physical Sciences. 77 (4): 267–273. INIST:PASCALGEODEBRGM7520066100.
  2. von Koenigswald (1934). "4". Zur Stratigraphie des javanischen Pleistocan. De Ingenieur in Nederlandsch Indie. Vol. 1. p. 190.
  3. Chrząstek, Alina; Górecka-Nowak, Anna; Kryza, Ryszard (2014). "Józef Zwierzycki, a great geologist of the 20th century (reminiscence 50 year after decease)". Geologia Sudetica. 42 (3–189): 172.
  4. Volmer, Rebekka; Hertler, Christine; van der Geer, Alexandra (1 January 2016). "Niche overlap and competition potential among tigers (Panthera tigris), sabertoothed cats (Homotherium ultimum, Hemimachairodus zwierzyckii) and Merriam's Dog (Megacyon merriami) in the Pleistocene of Java". Palaeogeography, Palaeoclimatology, Palaeoecology. 441: 901–911. Bibcode:2016PPP...441..901V. doi:10.1016/j.palaeo.2015.10.039. hdl:10795/3286.


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