Diversity and paleoenviromental significance of Brazilian fossil Galictis (Carnivora: Mustelidae)

Abstract

The evolutionary history of the genus Galictis in South America probably begins after the Great American Biotic Interchange. Two species are recognised: Galictis vittata and Galictis cuja. The latter are more frequently found in open areas in southern South America and the first occurs in humid forests from northern South America to Central America. Apparently, they do not occur in sympatry. Both are differentiate by the presence of a metaconid in the first inferior molar of G. vittata and for its bigger size when compared to G. cuja. The fossil record of Galictis is scarce, G. cuja is known by few specimens from Argentina, Chile and Brazil; G. vittata have only one record from Southern Brazil. The specimens related to this record were collected by Peter Lund and are housed at the Statens Naturhistoriske Museum. However, the specimens published by Lund are not fossils. Thus, it is presented here other unpublished specimens collected by Lund and housed at the same museum that we recognise as the first G. vittata fossils. Additionally, it is described here the first fossil record for G. cuja from the late Pleistocene of Brazil -an almost complete mandible recovered from sedimentary deposits from Central Brazil.

Revising the species “Mustela” ardea Gervais, 1848-1852 (Mammalia, Mustelidae): Martellictis gen. nov. and the systematics of the fossil “Galictinae” of Eurasia

“…Funding: this work was supported by the SYNTHESYS Project http://www.synthesys.info/ ( Project number HU-TAF-6520) at the Hungarian Museum of Natural History (HMNH)which is financed by European Community Research Infrastructure Action under the FP7 "Capacities" Programme. Bjork 1970;Yensen and Tarifa 2003;Abbazzi et al 2004;Qiu et al 2004;Ogino and Otsuka 2008;Rodrigues et al 2015.…”

Revising the species “Mustela” ardea Gervais, 1848–1852 (Mammalia, Mustelidae): Martellictis gen. nov. and the systematics of the fossil “Galictinae” of Eurasia

“…Eirictis: Shamar (Mongolia; Sotnikova et al, 2002), Nihewan Basin (China; Qiu et al, 2004). D-E, Bjork 1970;Yensen and Tarifa 2003;Abbazzi et al 2004;Qiu et al 2004;Ogino and Otsuka 2008;Rodrigues et al 2015.…”

“…Stratigraphic ranges and postulated phyletic relationships for genera of the tribe Galictini discussed in this report. The relationship is largely based on the cladogram in figure 3.Based on the following references: Bjork 1970; Yensen and Tarifa 2003;Abbazzi et al 2004;Qiu et al 2004;Ogino and Otsuka 2008;Rodrigues et al 2015.…”

Descrição de um fóssil de Eira barbara (Carnivora, Mustelidae) do Pleistoceno final (Bacia do Acre) e morfologia comparada do sincrânio de E. barbara recente: implicações paleobiogeográficas, geográficas e taxonômicas

“…Filogenia de Mustelidae baseada em análise Bayesiana usando o GTR+I+G modelo de substituição de DNA. Suportes à direita mostram as classificações das subfamílias como proposto por (FULTON & STROBECK, 2006;SATO et al, 2004 "externo";WOZENCRAFT, 2005 "interno" (LESSA et al, 1998;CASTRO et al 2014), Minas Gerais (LESSA et al, 1998;VASCONCELOS, 2014) e Acre (RANCY 1991) e às espécies Galictis vittata (RODRIGUES, 2015), Galictis cuja (RODRIGUES, 2014(RODRIGUES, , 2015, Lontra longicaudis (CARTELLE, 1999) Atualmente os registros fósseis de E. barbara na América do Sul são bastante escassos, e ao mesmo tempo, os estudos destes fósseis são frequentemente desprovidos de maiores esforços para realização de descrições morfológicas detalhadas. Em consequência, observa-se a carência de estudos paleobiogeográficos, os quais, que proporcionam maiores conhecimentos sobre a diversificação da espécie, como também do grupo à qual esta pertence.…”