Hegetotherium

Hegetotherium
Temporal range: Early-Middle Miocene (Colhuehuapian-Colloncuran)
~21–15.5 Ma
Skull of Hegetotherium mirabile
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Notoungulata
Family: †Hegetotheriidae
Subfamily: †Hegetotheriinae
Genus: †Hegetotherium
Ameghino 1887
Species
  • H. mirabile Ameghino 1887 (type)
  • H. cerdasensis Croft et al. 2016

Hegetotherium is an extinct genus of mammals from the Early to Middle Miocene (Colhuehuapian-Colloncuran in the SALMA classification) of South America. Fossils of this genus have been found in the Cerro Bandera,[1] Cerro Boleadoras,[2] Chichinales,[3][4] Collón Curá, Santa Cruz[5][6] and Sarmiento Formations of Argentina, the Nazareno Formation of Bolivia,[7] and the Galera[8] and Río Frías Formations of Chile.

Taxonomy

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Hegetotherium is currently restricted to the type species, H. mirable, of which H. convexum, H. anceps, H. minum and H. andinum are synonyms, but also H. cerdasensis. "Hegetotherium" arctum was formerly assigned to this genus, but is clearly not a member of Hegetotheriidae. "Hegetotherium" novum was formerly referred to the closely related genus Prohegetotherium, but is now considered generically distinct from that genus.[9][10]

References

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  1. ^ Kramarz, Alejandro Gustavo; Paz, Ernesto Rodrigo (2013). "Un Hegetotheriidae (Mammalia, Notoungulata) basal del Mioceno temprano de Patagonia". Revista Mexicana de Ciencias Geológicas (in Spanish). 30 (1): 186–195. ISSN 1026-8774.
  2. ^ Vizcaino, Sergio F.; Bargo, M. Susana; Pérez, M. Encarnación; Aramendía, Inés; Cuitiño, José I.; Monsalvo, Eduardo S.; Vlachos, Evangelos; Noriega, Jorge I.; Kay, Richard F. (2022-09-30). "Fossil vertebrates of the early-middle Miocene Cerro Boleadoras Formation, northwestern Santa Cruz Province, Patagonia, Argentina". Andean Geology. 49 (3): 382–422. doi:10.5027/andgeoV49n3-3425. ISSN 0718-7106.
  3. ^ Barrio, Claudio; Carlini, Alfredo A.; Goin, Francisco J. (1989). "Litogénesis y antigüedad de la Formación Chichinales de Paso Córdoba (Río Negro, Argentina)". Actas, IV Congreso Argentino de Paleontología y Bioestratigrafía, Mendoza. 4: 149–156.
  4. ^ Federico L. Agnolin and Pablo Chafrat (2015). "New fossil bird remains from the Chichinales Formation (Early Miocene) of northern Patagonia, Argentina". Annales de Paléontologie. 101 (2): 87–94. Bibcode:2015AnPal.101...87A. doi:10.1016/j.annpal.2015.02.001.
  5. ^ Cuitiño, José I.; Vizcaíno, Sergio F.; Bargo, M. Susana; Aramendía, Inés (2019-05-31). "Sedimentology and fossil vertebrates of the Santa Cruz Formation (early Miocene) in Lago Posadas, southwestern Patagonia, Argentina". Andean Geology. 46 (2): 383–420. doi:10.5027/andgeoV46n2-3128. hdl:11336/96343. ISSN 0718-7106.
  6. ^ Zurita-Altamirano, Daniel; Buffetaut, Eric; Forasiepi, Analía M.; Kramarz, Alejandro; Carrillo, Juan D.; Aguirre-Fernández, Gabriel; Carlini, Alfredo A.; Scheyer, Torsten M.; Sánchez-Villagra, Marcelo R. (2019). "The Allemann collection from the Santa Cruz Formation (late early Miocene), Argentina, in Zurich, Switzerland". Swiss Journal of Palaeontology. 138 (2): 259–275. Bibcode:2019SwJP..138..259Z. doi:10.1007/s13358-019-00185-5. hdl:11336/120785. ISSN 1664-2384.
  7. ^ Croft, Darin A.; Carlini, Alfredo A.; Ciancio, MartÍn R.; Brandoni, Diego; Drew, Nicholas E.; Engelman, Russell K.; Anaya, Federico (2016-09-02). "New mammal faunal data from Cerdas, Bolivia, a middle-latitude Neotropical site that chronicles the end of the Middle Miocene Climatic Optimum in South America". Journal of Vertebrate Paleontology. 36 (5): e1163574. Bibcode:2016JVPal..36E3574C. doi:10.1080/02724634.2016.1163574. hdl:11336/49745. ISSN 0272-4634. S2CID 87802865.
  8. ^ Flynn, John J.; Novacek, Michael J.; Dodson, Holly E.; Frassinetti, Daniel; McKenna, Malcolm C.; Norell, Mark A.; Sears, Karen E.; Swisher, Carl C.; Wyss, André R. (2002-07-01). "A new fossil mammal assemblage from the southern Chilean Andes: implications for geology, geochronology, and tectonics". Journal of South American Earth Sciences. 15 (3): 285–302. Bibcode:2002JSAES..15..285F. doi:10.1016/S0895-9811(02)00043-3. ISSN 0895-9811.
  9. ^ F. D. Seoane, S. R. Juñent, and E. Cerdeño. 2017. Phylogeny and paleobiogeography of Hegetotheriidae (Mammalia, Notoungulata). Journal of Vertebrate Paleontology 37(1):e1278547:1-13.
  10. ^ Seoane, Federico Damián; Cerdeño, Esperanza (2019-10-02). "Systematic revision of Hegetotherium and Pachyrukhos (Hegetotheriidae, Notoungulata) and a new phylogenetic analysis of Hegetotheriidae". Journal of Systematic Palaeontology. 17 (19): 1635–1663. Bibcode:2019JSPal..17.1635S. doi:10.1080/14772019.2018.1545146. ISSN 1477-2019. S2CID 92218443.


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