Extinct genus of litopterns
Paramacrauchenia is an extinct genus of proterotheriid litopterns from the Early Miocene of what is now Argentina and Chile. Its fossils have been found in the Sarmiento and Santa Cruz Formations of Argentina and Chile.
Taxonomy.
"Paramacrauchenia" was originally assigned to the family Macraucheniidae, however, recent studies now consider it a member of the family Proterotheriidae, where it is found to be a derived member, closely related to "Lambdaconus".
Below is a phylogenetic tree of the Proterotheriidae, based on the work of McGrath "et al". 2020.
References.
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