A. C. S. Fernandes

Beresi

Cardoso

D. W. Rogerio

Dias

Dino

Finks

Grant

Hessel

Klepzig

Kling

L. D. Mouro

Martins

Mehl

Mostler

Pinto

Richter

Rösler

Schulze

V. M. Fonseca

Weinschütz

Zingano

The first-described articulated Permian sponge from Brazil, representing Hexactinellida, has been recovered from the Lontras Shale in the Campáleo outcrop (Permian, Asselian–Sakmarian), Rio do Sul Formation, Mafra, in southern Brazil. It is assigned to the Hemidiscellidae and identified as Microhemidiscia greinerti n. sp. This fossil represents the first record of articulated sponges in Brazil from the Paleozoic Era, as well as the second species known from this genus. Moreover, it increases knowledge of the order Hemidiscosa, a monotypic group mostly defined by simple characters, which is here considered to comprise one family, Hemidiscellidae (Pennsylvanian-Cretaceous), and two genera, Hemidiscella and Microhemidiscia.</jats:p

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Journal of Paleontology

First articulated sponge from the Paleozoic of Brazil, and a new organization of the order Hemidiscosa

First articulated sponge from the Paleozoic of Brazil, and a new organization of the order Hemidiscosa

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