Lizards from the Lost World: two new species and evolutionary relationships of the Pantepui highland Riolama (Gymnophthalmidae)

Autor(es)

Recoder, Renato ^[1] ; Prates, Ivan ^[2] ; Marques-Souza, Sergio ^[1] ; Camacho, Agustin ^[1] ; Nunes, Pedro M. Sales ^[3] ; Dal Vechio, Francisco ^[1] ; Ghellere, Jose Mario ^[1] ; McDiarmid, Roy W. ^[2] ; Rodrigues, Miguel Trefaut ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo - Brazil

^[2] Smithsonian Inst, Natl Museum Nat Hist, Dept Vertebrate Zool, Washington, DC 20560 - USA

^[3] Univ Fed Pernambuco, Ctr Biociencias, Dept Zool, Recife, PE - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY; v. 190, n. 1, p. 271-297, SEP 2020.
• Citações Web of Science: 1

Resumo

The Pantepui region of northern South America harbours an endemic fauna that differs dramatically from those of the surrounding lowland rainforests and savannas. A component of this unique fauna is Riolama, a poorly known genus of microteiid lizards with four described and two undescribed species restricted to tepui mountains. We here implement an integrative approach to formally describe the two unnamed species and investigate the phylogenetic relationships and timing of diversification in Riolama using a fossil-calibrated molecular approach. Our results suggest that diversification initiated in Riolama during the Oligocene (c. 28 Mya), thereby characterizing the genus as an ancient lineage. This supports the Plateau biogeographic hypothesis to explain the diversification of the Pantepui fauna. Our divergence time estimation analysis also provides an updated temporal framework for the diversification of the highly diverse Gymnophthalmidae Glade. (AU)

• Processo FAPESP: 13/50297-0 - Dimensions US-BIOTA São Paulo: integrando disciplinas para a predição da biodiversidade da Floresta Atlântica no Brasil
• Beneficiário: Cristina Yumi Miyaki
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 12/15754-8 - Consequências ecogeográficas da evolução do morfotipo serpentiforme em Squamata
• Beneficiário: Agustín Camacho Guerrero
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/50146-6 - Filogeografia comparada, filogenia, modelagem paleoclimática e taxonomia de répteis e anfíbios neotropicais
• Beneficiário: Miguel Trefaut Urbano Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático