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Phyllocarid crustaceans from the Silurian Eramosa Lagerstätte (Ontario, Canada): taxonomy and functional morphology

Published online by Cambridge University Press:  14 July 2015

Joseph H. Collette  and
David M. Rudkin
Joseph H. Collette
Affiliation:
Department of Earth Sciences, 900 University Ave., Geology Building, University of California, Riverside, CA,
David M. Rudkin
Affiliation:
Department of Natural History, Royal Ontario Museum, 100 Queen's Park, Toronto, ON,
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Abstract

Two species of well-preserved phyllocarid crustaceans, Ceratiocaris macroura n. sp. and Ceratiocaris papilio Salter, occur in the Eramosa Formation Lagerstätte of Ontario, Canada, represented by several dozen articulated fossils preserving limbs and thoracic segmentation. Ceratiocaris macroura n. sp. is distinguished by possession of an exceptionally elongate telson in relation to its body length. Ceratiocaris papilio preserves fine detail of the abdominal scale-like ornamentation, allowing reinterpretation and enhanced characterization of this key feature. Ceratiocaris papilio has a wide paleogeographic distribution across Laurentia but is restricted to shallow marine depositional settings within the middle Silurian.

Type
Research Article
Information
Journal of Paleontology , Volume 84 , Issue 1 , January 2010 , pp. 118 - 127
Copyright
Copyright © The Paleontological Society 

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