Jump to content

Morenelaphus

From Wikipedia, the free encyclopedia

Morenelaphus
Temporal range: Pleistocene (Ensenadan-Lujanian)
~0.77–0.012 Ma
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Cervidae
Subfamily: Capreolinae
Genus: †Morenelaphus
Carette, 1922
Type species
†Cervus brachyceros
Species[1]
  • †M. brachyceros (Gervais & Ameghino, 1880)
  • †M. lujanensis (Ameghino, 1888)

Morenelaphus is an extinct genus of capreoline deer that lived in South America during the Pleistocene epoch (Ensenadan-Lujanian faunal stages), ranging from the Pampas to southern Bolivia and Northeast Brazil. The genus contains two named species, Morenelaphus brachyceros and Morenelaphus lujanensis. It was a large deer, with some specimens estimated to exceed 200 kilograms in body mass.[2] The antlers were over 70 cm in length, and are superficially similar those of deer belonging to the subfamily Cervinae, like red deer.[3] Fossils of the genus have been recovered from the Agua Blanca, Fortín Tres Pozos and Luján Formations of Argentina, the Ñuapua Formation of Bolivia, Santa Vitória do Palmar in southern Brazil, Paraguay and the Sopas Formation of Uruguay.[4]

The earliest possible fossil record of Morenelaphus is known from the Miramar Formation, dated to the Ensenadan faunal stage (corresponding to Early-Middle Pleistocene).[5] Dental microwear analysis suggests Morenelaphus had a mixed-feeder diet, including grass and perhaps with the occasional ingestion of gritstone. It went extinct during the Pleistocene-Holocene transition, around 12,000 years ago, possibly as a result of climate change and nutritional stress.[6]

References

[edit]
  1. ↑ Carette, E. (1922). "Cérvidos actuales y fóssiles de Sid America: Revisión de las formas extinguidas pampeanas". Revista del Museo de La Plata. 26: 393–472.
  2. ↑ Alline Rotti; Raúl Ignacio Vezzosi; Dimila Mothé; Leonardo dos Santos Avilla (2021). "Rising from the ashes: The biggest South American deers (Cetartiodactyla: Cervidae) once roamed Northeast Brazil". Journal of South American Earth Sciences. Bibcode:2021JSAES.10803154R. doi:10.1016/j.jsames.2021.103154. Wikidata Q104936917.
  3. ↑ Croitor, Roman (2022-11-06). "Paleobiogeography of Crown Deer". Earth. 3 (4): 1138–1160. Bibcode:2022Earth...3.1138C. doi:10.3390/earth3040066. ISSN 2673-4834.
  4. ↑ Morenelaphus at Fossilworks.org
  5. ↑ Tonni, Eduardo P.; Alberdi, María T.; Prado, José L.; Bargo, María S.; Cione, Alberto L. (1992). "Changes of mammal assemblages in the pampean region (Argentina) and their relation with the Plio-Pleistocene boundary". Palaeogeography, Palaeoclimatology, Palaeoecology. 95 (3–4): 179–194. doi:10.1016/0031-0182(92)90140-Z.
  6. ↑ Alline Rotti; Dimila Mothé; Leonardo dos Santos Avilla; Gina M. Semprebon (2018). "Diet reconstruction for an extinct deer (Cervidae: Cetartiodactyla) from the Quaternary of South America". Palaeogeography, Palaeoclimatology, Palaeoecology. 497: 244–252. Bibcode:2018PPP...497..244R. doi:10.1016/j.palaeo.2018.02.026. Wikidata Q56522729.