The ontogeny of the Ordovician trilobite Ovalocephalus and its bearing on the affinity and evolution of the genus
Ontogenetic material of Ovalocephalus primitivus has been recovered from the Ordovician Dawan Formation (Arenig Series) of Anhui, South China. The metaprotaspis has a forwardly arched anterior margin, anteriorly expanded glabella, and short anterior and midfixigenal spines. The Hammatocnemidae, in w...
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| Format: | Conference item |
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2003
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