Cullinia

Cullinia is an extinct genus of litoptern, an order of South American native ungulates that included horse-like and camel-like animals such as Macrauchenia. It is only known from fragmentary remains. Cullinia levis is known from Chasicoan remains found in the Arroyo Chasicó Formation of Argentina, and remains from the Brazilian state of Acre and the Huayquerian Ituzaingó Formation have been assigned to Cullinia sp.. [1]

Cullinia
Temporal range: Late Miocene (Tortonian-Messinian)
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Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Litopterna
Family: †Macraucheniidae
Subfamily: †Macraucheniinae
Genus: †Cullinia
Cabrera & Kraglievich, 1931
Type species
Cullinia levis

History and Etymology

Cullinia was described in 1931 by Cabrera and Kraglievich, from MLP 29-IX-178, an holotype containing several fragmentary remains including a mandible and a metatarsal. In 1995, Bond and López add to the holotype other remains from the upper dentition.[2]

It was named from the Araucanian word "cullin", meaning "animal".[1]

Description

Cullinia was a slender, small Macraucheniidae. It had proportionally larger metapodials than Theosodon, and its first lower molar was absent.[1]

Classification

Cladogram based in the phylogenetic analysis published by Schmidt et al., 2014, showing the position of Cullinia:[3]

 
 

Proadiantus

 
 
 

Tricoelodus

 
 
 

Polymorphis

 
 
 

Pternoconius

 
 

Coniopternium

 
 

Cramauchenia

 
 
 

Theosodon

 
 
Macraucheniinae
 

Scalabrinitherium

 
 
 

Oxyodontherium

 
 
 

Huayqueriana

 
 
 
 

Paranauchenia denticulata

 
 

Paranauchenia hystatus

 
 
 
 

Cullinia

 
 
 

Promacrauchenia

 
 
 

Windhausenia

 
 

Xenorhinotherium

 
 
 

Macraucheniopsis

 
 

Macrauchenia

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

References

  1. Cabrera, A.; Kraglievich, J. L. (1931). "Diagnosis previas de los ungulados fósiles del arroyo Chasicó". Journal of Mammalian Evolution. 1: 107–113.
  2. Schmidt, Gabriela I. (2013). Litopterna y Notoungulata (Mammalia) de la formación Ituzaingó (Mioceno tardío-Plioceno) de la provincia de Entre Ríos: sistemática, bioestratigrafía y paleobiogeografía (Thesis). Universidad Nacional de La Plata. doi:10.35537/10915/26442.
  3. Schmidt, Gabriela I.; Ferrero, Brenda S. (September 2014). "Taxonomic Reinterpretation of Theosodon hystatus Cabrera and Kraglievich, 1931 (Litopterna, Macraucheniidae) and Phylogenetic Relationships of the Family". Journal of Vertebrate Paleontology. 34 (5): 1231–1238. doi:10.1080/02724634.2014.837393.
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