Translator Disclaimer
14 April 2020 A New Fairy Armadillo (Cingulata, Chlamyphorinae) from the Upper Miocene of Argentina: First Fossil Record of the Most Enigmatic Xenarthra
Author Affiliations +
Abstract

Recent molecular analyses suggest that the evolutionary history of Cingulata (Xenarthra) could be more complex than believed previously. An ancient divergence was proposed for armadillos, recognizing two large monophyletic groups: Dasypodidae (including Dasypodinae) and Chlamyphoridae (including Euphractinae, Tolypeutinae, and Chlamyphorinae). Extant Chlamyphorinae (fairy armadillos) are among the most bizarre, elusive, and unknown mammals of the world. Here, we report the first accurate fossil record of this enigmatic xenarthran from the upper Miocene of the Argentine Pampas in southern South America, which represents a new genus and species (Chlamyphractus dimartinoi, gen. et sp. nov.). The phylogenetic analysis reflects the monophyly of the chlamyphorines. It is well supported by several unambiguous synapomorphies and includes the new fossil taxon as a sister group of the two extant species. This new taxon represents the most basal lineage among Chlamyphorinae and increases its diversity. The morphology of the forelimb suggests that it would have been a good digger, although, unlike extant species, it would not have had ‘fully’ subterranean habits.

© by the Society of Vertebrate Paleontology
Daniel Barasoain, Rodrigo L. Tomassini, Alfredo E. Zurita, Claudia I. Montalvo, and Mariella Superina "A New Fairy Armadillo (Cingulata, Chlamyphorinae) from the Upper Miocene of Argentina: First Fossil Record of the Most Enigmatic Xenarthra," Journal of Vertebrate Paleontology 39(5), (14 April 2020). https://doi.org/10.1080/02724634.2019.1716778
Received: 13 August 2019; Accepted: 31 October 2019; Published: 14 April 2020
JOURNAL ARTICLE
PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top