Late Ordovician (Caradocian) Radiolarians from Nevada

1 January 1990

journal article
research article
Published by JSTOR in Micropaleontology

Vol. 36 (4) , 367-378
https://doi.org/10.2307/1485476

Abstract

This is a taxonomic study of a late Ordovician radiolarian assemblage found in a calcareous concretion from Eureka County, Nevada. Included are the earliest unquestionable descriptions of species in the family Palaeoscenidiidae, Eleven different forms are described including two new genera. Palaeosphaera and Palaeotrifidus, and seven new species, Entactinia? spongia, Palaeoephippium octaramosum, Palaeosphaera micra, Palaeotrifidus ballator, Palaeotrifidus Imbifurcus, Palaeotripus sexabrachiatus and Secuicollacta stelligera.

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