Hilalia is an extinct genus of condylarth that lived during the Eocene. Fossils of Hilalia have been found at Uzunçarsidere Formation in Turkey.[1] It was the last surviving genus of Pleuraspidotheriids, which were previously thought to have gone extinct during the Late Palaeocene.[2]
Hilalia Temporal range: Mid Eocene
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | †Condylarthra |
Family: | †Pleuraspidotheriidae |
Genus: | †Hilalia Maas et al., 2001 |
Species | |
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Taxonomy
editFour species have been described, differing from each other primarily by size and premolar morphology.[1]
Species
edit- Hilalia robusta
- Hilalia saribeya
- Hilalia selanneae
- Hilalia sezerorum
Paleoecology
editDuring the Eocene, Turkey is believed to have been an island ecosystem, harboring many taxa that had gone extinct on mainland areas earlier.[3]
Living alongside Hilalia were embrithopods and various metatherians, such as the predatory Anatoliadelphys.[4][5]
References
edit- ^ a b Maas, M.C. (2001). "Enigmatic New Ungulates from the Early Middle Eocene of Central Anatolia, Turkey". Journal of Vertebrate Paleontology. 21 (3): 578–590. doi:10.1671/0272-4634(2001)021[0578:ENUFTE]2.0.CO;2. JSTOR 20061987.
- ^ Métais, G. (2017). "Tarsal morphology of the pleuraspidotheriid mammal Hilalia from the middle Eocene of Turkey". Acta Palaeontologica Polonica. 62 (1): 173–179. doi:10.4202/app.00314.2016. hdl:1808/25201.
- ^ Métais, G. (2018). "Eocene metatherians from Anatolia illuminate the assembly of an island fauna during Deep Time". PLOS ONE. 14 (2): e0212985. doi:10.1371/journal.pone.0212985. PMC 6386525. PMID 30794714.
- ^ A. Murat Maga; Robin M. D. Beck (2017). "Skeleton of an unusual, cat-sized marsupial relative (Metatheria: Marsupialiformes) from the middle Eocene (Lutetian: 44-43 million years ago) of Turkey". PLoS ONE. 12 (8): e0181712. doi:10.1371/journal.pone.0181712.
- ^ de Lazaro, Enrico. "Cat-Sized Marsupial Relative Lived in Turkey 43 Million Years Ago". Sci-news. Retrieved Aug 18, 2017.