On the presence of a pustulated temnospondyl in the Lower Triassic of southern Brazil

• Autorzy: Dias-da-Silva S. , Ramos Ilha, A.L.
• Języki publikacji: EN

Abstrakty

EN

The fossil record of temnospondyls in South America has been greatly expanded in the last 10 years, increasing their overall significance. They occur in Argentina, Brazil, and Uruguay, and range from the Guadalupian to the Late Triassic. The Early Triassic temnospondyl record in southern Brazil is mainly composed of fragmentary specimens, usually represented by dermal skull bones from the Sanga do Cabral Formation. Some of these fragments were tentatively referred to Lydekkerinidae and Rhytidosteidae based on their characteristic ridge−grooved “spider−web” pattern of ornamentation. In this contribution we report, for the first time, a temnospondyl skull fragment with pustulated sculpturing pattern, which is tentatively ascribed to Plagiosauridae. This new record could indicate the presence of a new temnospondyl taxon for the Lower Triassic of South America.

Słowa kluczowe

EN

temnospondyl; Lower Triassic; Brazil; Temnospondyli; Plagiosauridae; paleobiogeography; Sanga do Cabral Formation; Sangaia lavinai; South America

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2009
• Tom: 54
• Numer: 4
• Opis fizyczny: p.609-614,fig.,ref.

Twórcy

autor

Dias-da-Silva S.

• Universidade Federal do Pompa, Campus de Sao Gabriel, Avenida Antonio Trilha, 1847, Bairro Centro, CEP 97.300-000, Sao Gabriel, Rio Grande do Sul, Brazil

autor

Ramos Ilha, A.L.

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