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The ontogeny of the Ordovician trilobite Ovalocephalus and its bearing on the affinity and evolution of the genus

Abstract:

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 which Ovalocephalus has hitherto been placed, is therefore now better regarded as a separate subfamily within the Pliomeridae. Ontogenetic changes include the successive abaxial and forward expansio...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Volume:
70
Issue:
70
Pages:
259-269
Host title:
TRIBOLITES AND THEIR RELATIVES
Publication date:
2003-01-01
ISSN:
0038-6804
Source identifiers:
82460
ISBN:
0901702811
Keywords:
Pubs id:
pubs:82460
UUID:
uuid:143ce449-5a9e-47d9-8041-7ee7e7c78446
Local pid:
pubs:82460
Deposit date:
2012-12-19

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