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Hilalia

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Extinct genus of mammal

Hilalia
Temporal range: Mid Eocene
48.6 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Condylarthra
Family: †Pleuraspidotheriidae
Genus: †Hilalia
Maas et al., 2001
Species
  • H. robusta
  • H. saribeya
  • H. selanneae
  • H. sezerorum

Hilalia is an extinct genus of condylarth that lived during the Eocene. Fossils of Hilalia have been found at Uzunçarsidere Formation in Turkey. It was the last surviving genus of Pleuraspidotheriids, which were previously thought to have gone extinct during the Late Palaeocene.

Taxonomy

Four species have been described, differing from each other primarily by size and premolar morphology.

Species

  • Hilalia robusta
  • Hilalia saribeya
  • Hilalia selanneae
  • Hilalia sezerorum

Paleoecology

During the Eocene, Turkey is believed to have been an island ecosystem, harboring many taxa that had gone extinct on mainland areas earlier.

Living alongside Hilalia were embrithopods and various metatherians, such as the predatory Anatoliadelphys.

References

  1. ^ 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.
  2. 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.
  3. 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.
  4. 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.
  5. de Lazaro, Enrico. "Cat-Sized Marsupial Relative Lived in Turkey 43 Million Years Ago". Sci-news. Retrieved Aug 18, 2017.
Taxon identifiers
Hilalia


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