Castro, Mariela C.
Avilla, Leonardo S.
Freitas, Mila L.
Carlini, Alfredo A.
Total Authors: 4
 Univ Nacl La Plata, Fac Ciencias Nat & Museo, Div Paleontol Vertebrados, Buenos Aires, DF - Argentina
 Univ Fed Estado Rio de Janeiro, Dept Zool, Lab Mastozool, BR-14040901 Rio De Janeiro, RJ - Brazil
 Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF - Argentina
Total Affiliations: 3
DEC 13 2013.
Web of Science Citations:
This paper describes new remains of Propraopus sulcatus from a late Quaternary cave deposit located in Aurora do Tocantins, northern Brazil. Propraopus was recorded in numerous late Pleistocene-early Holocene sites in South America, and its inclusiveness has been long debated. In order to address some of the controversial taxonomic questions, the osteoderms of P. sulcatus were qualitatively and quantitatively compared to those of related nominal species (Propraopus grandis, Propraopus magnus, Dasypus bellus, and Dasypus punctatus); special attention was given to the former due to the debated synonymy between both taxa. Analyses reveal that there is no morphologic, spatial, or temporal discontinuity between P. sulcatus and P. grandis. Adopting morphologic, associational, and distributional criteria to define morphospecies, we believe it is impossible to clearly separate both nominal entities. As a consequence, in agreement with previous studies, we favor their synonymization. P. sulcatus has nomenclatural priority over P. grandis and should be the valid name for the species. The scarce analyzed remains referred to P. magnus show concordant size and morphology with P. sulcatus, but the analysis of more complete material is essential to determine its synonymization. Finally, we revised and updated the geochronologic distribution of Propraopus. (C) 2013 Elsevier Ltd and INQUA. All rights reserved. (AU)