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Preliminary description of a Paleoniscoid Fish from the Late Paleozoic of Brazil

1956; Issue: 13 Linguagem: Inglês

10.11606/issn.2526-3862.bffcluspgeologia.1956.121775

2526-3862

David H Dunkle, Bobb Schaeffer,

Paleontology and Evolutionary Biology

Only a few fragmentary fish remains have as yet been described from the much debated Gondwanic rocks of B razil.The complete specimen which comprises the subject of this preliminary note is, there fore, of considerable interest, The fossil, property of the D epartm ent of Geology and Paleontology University of São Paulo, was recovered recently from a quarry situated at Conchas, a city in the south-central part of the state of São Paulo.It derived from siltstones of the Corumbatai formation 2 Stratigraphically, these Corumbatai beds are restricted in distribution to São Paulo and are considered a lateral facies of the Es trada Nova and Rio de Rasto formations of the States of Santa Catarina and Parana.It, therefore, together with the Irati formation constitutes a regional expression of the Lower Permian Passo Dois Series.Ecolo ( 1 ) P ub lished gy perm ission of th e S ecretary, S m ithsonian In s titu tio n .( 2 ) O espécim e foi en contrad o por operários m unicipais e n tre os K m 199 e 200 da rodovia C onchas-B otucatu, a 40 m etros aquém do ribeirão dos L opes, e en tregue ao