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Paranisolambda

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Paranisolambda
Temporal range: Early Eocene-Middle Eocene (Riochican-Casamayoran)
~55.8–48.6 Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Litopterna
Family: Proterotheriidae
Subfamily: Anisolambdinae
Genus: Paranisolambda
Cifelli, 1983
Species:
P. prodromus
Binomial name
Paranisolambda prodromus
Synonyms

Paranisolambda is an extinct genus of proterotheriid litopterns from the Early to Middle Eocene of Brazil. Fossils of Paranisolambda have been recovered from the Itaboraí Formation in the Brazilian state of Rio de Janeiro.[1]

Etymology

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The genus name, Paranisolambda, is derived from the Greek para/παρα meaning "beside" or "near", and its close relative Anisolambda, the genus it was originally assigned to. The specific name, "prodromus" is derived from the Greek word prodromos, meaning "forerunner".[2]

History

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The first remains of Paranisolambda were found in the Sāo José De Itaboraí Basin in 1948, consisting of the right mandible of a young individual as the holotype.

Taxonomy

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References

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  1. ^ Bergqvist, Lílian Paglarelli (September 2010). "Deciduous Premolars of Paleocene Litopterns of São José De Itaboraí Basin, Rio De Janeiro, Brasil". Journal of Paleontology. 84 (5): 858–867. Bibcode:2010JPal...84..858B. doi:10.1666/09-084.1. ISSN 0022-3360. S2CID 130949060.
  2. ^ Cifelli, Richard L. (November 9, 1983). "The Origin and Affinities of the South American Condylarthra and Early Tertiary Litopterna (Mammalia)" (PDF). American Museum Novitates: 1–49.