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Hyainailourinae
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| Hyainailourinae Temporal range: Middle Eocene to Late Miocene
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| Megistotherium osteothlastes life restoration | |
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| Pterodon dasyuroides cranium and mandible | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Hyaenodonta |
| Superfamily: | †Hyainailouroidea |
| Family: | †Hyainailouridae |
| Subfamily: | †Hyainailourinae Pilgrim, 1932[1] |
| Type genus | |
| †Hyainailouros (polyphyletic genus) Biedermann, 1863
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| Genera | |
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[see classification]
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| Synonyms | |
Hyainailourinae ("hyena-like cats") is a paraphyletic subfamily of hyaenodonts from extinct paraphyletic family Hyainailouridae. They arose during the Middle Eocene in Asia,[5] and persisted well into the Late Miocene. Fossils of this group have been found in Africa, Eurasia, and North America.[6][7][8][5][9][10]
General characteristics
[edit]Hyainailourins are characterized by long skulls, slender jaws, slim bodies, and a plantigrade stance. They generally ranged in size from 30 to 140 cm at the shoulder. While some measured as much as 1.4 m high at the shoulder with head-body length up to 3.2 m and weighed up to 500 kg,[11] most were in the 5–15 kg range, equivalent to a mid-sized dog. The anatomy of their skulls show that they had a particularly acute sense of smell, while their teeth were adapted for shearing, rather than crushing.
Classification and phylogeny
[edit]Taxonomy
[edit]
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References
[edit]- ^ Pilgrim G. E. (1932). "The fossil Carnivora of India. Memoirs of the Geological Survey of India". Palaeontologica Indica. 18 (1–232). doi:10.1017/S0016756800096448. Archived from the original on April 13, 2023.
- ^ S. Peigné, M. Morlo, Y. Chaimanee, S. Ducrocq, S. T. Tun and J. J. Jaeger (2007). "New discoveries of hyaenodontids (Creodonta, Mammalia) from the Pondaung Formation, middle Eocene, Myanmar—paleobiogeographic implications". Geodiversitas. 29: 441–458.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Ginsburg, L. (1980). "Hyainailouros sulzeri, mammifère créodonte du Miocène européen". Annales de Paléontologie. 66: 19–73.
- ^ P. D. Poll (1996). "The skeleton of Gazinocyon vulpeculus gen. et. comb nov. and the cladistic relationships of Hyaenodontidae (Eutheria, Mammalia)" (PDF). Journal of Vertebrate Paleontology. 16 (2): 303–31. Bibcode:1996JVPal..16..303P. doi:10.1080/02724634.1996.10011318. Archived (PDF) from the original on June 25, 2023.
- ^ a b Matthew R. Borths; Nancy J. Stevens (2017). "The first hyaenodont from the late Oligocene Nsungwe Formation of Tanzania: Paleoecological insights into the Paleogene-Neogene carnivore transition". PLOS ONE. 12 (10) e0185301. Bibcode:2017PLoSO..1285301B. doi:10.1371/journal.pone.0185301. PMC 5636082. PMID 29020030.
- ^ Solé, F.; Lhuillier, J.; Adaci, M.; Bensalah, M.; Mahboubi, M.; Tabuce, R. (2013). "The hyaenodontidans from the Gour Lazib area (?Early Eocene, Algeria): implications concerning the systematics and the origin of the Hyainailourinae and Teratodontinae". Journal of Systematic Palaeontology. 12 (3): 303–322. doi:10.1080/14772019.2013.795196. S2CID 84475034.
- ^ Floréal Solé; Eli Amson; Matthew Borths; Dominique Vidalenc; Michael Morlo; Katharina Bastl (2015). "A New Large Hyainailourine from the Bartonian of Europe and Its Bearings on the Evolution and Ecology of Massive Hyaenodonts (Mammalia)". PLOS ONE. 10 (9) e0135698. Bibcode:2015PLoSO..1035698S. doi:10.1371/journal.pone.0135698. PMC 4580617. PMID 26398622.
- ^ Matthew R. Borths; Patricia A. Holroyd; Erik R. Seiffert (2016). "Hyainailourine and teratodontine cranial material from the late Eocene of Egypt and the application of parsimony and Bayesian methods to the phylogeny and biogeography of Hyaenodonta (Placentalia, Mammalia)". PeerJ. 4 e2639. doi:10.7717/peerj.2639. PMC 5111901. PMID 27867761.
- ^ Jorge Morales; Martin Pickford (2017). "New hyaenodonts (Ferae, Mammalia) from the Early Miocene of Napak (Uganda), Koru (Kenya) and Grillental (Namibia)" (PDF). Fossil Imprint. 73 (3–4): 332–359. doi:10.2478/if-2017-0019. S2CID 31350436.
- ^ Averianov, Alexander; Obraztsova, Ekaterina; Danilov, Igor; Jin, Jian-Hua (2023). "A new hypercarnivorous hyaenodont from the Eocene of South China". Frontiers in Ecology and Evolution. 11. Bibcode:2023FrEEv..1176819A. doi:10.3389/fevo.2023.1076819. ISSN 2296-701X.
- ^ Sorkin, Boris (2008). "A biomechanical constraint on body mass in terrestrial mammalian predators". Lethaia. 41 (4): 333–347. Bibcode:2008Letha..41..333S. doi:10.1111/j.1502-3931.2007.00091.x. ISSN 0024-1164.