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REINTERPRETATION OF A CONULARIID‐LIKE FOSSIL FROM THE VENDIAN OF RUSSIA
Author(s) -
VAN ITEN HEYO,
DE MORAES LEME JULIANA,
COELHO RODRIGUES SABRINA,
GUIMARÃES SIMÕES MARCELLO
Publication year - 2005
Publication title -
palaeontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.69
H-Index - 63
eISSN - 1475-4983
pISSN - 0031-0239
DOI - 10.1111/j.1475-4983.2005.00471.x
Subject(s) - reinterpretation , paleontology , interpretation (philosophy) , homology (biology) , paleozoic , argument (complex analysis) , geology , evolutionary biology , biology , philosophy , genetics , aesthetics , linguistics , biochemistry , gene
Vendoconularia triradiata Ivantsov and Fedonkin, recently described from Vendian (latest Proterozoic) strata of Russia, has been interpreted as a six‐sided conulariid cnidarian. However, comparison of published illustrations of V . triradiata with Palaeozoic conulariids suggests that certain key features of the anatomy of V . triradiata should be reinterpreted. Specifically, features previously homologized with the corners of conulariid thecae may actually be homologous to the conulariid midlines. Under this new interpretation, the corners of the Vendoconularia theca were sulcate, and the midline of each face was non‐sulcate and flanked by a pair of low internal carinae. This alternative set of hypotheses of homology makes the argument for a conulariid affinity for Vendoconularia stronger.