Echinochiton dufoei, a new spiny Ordovician chiton

Journal of Paleontology
By: , and 



Echinochiton dufoei new genus and species is described from the Ordovician age Forreston Member, Grand Detour Formation (Blackriveran) near Beloit, Wisconsin. For a variety of reasons, we regard E. dufoei as a chiton; the species is known from four articulated or partially articulated specimens, one of which has eight plates and two of which have a mucro on the tail plate. Echinochiton dufoei differs from other chitons in having large hollow spines that project from each of the known plates. In plate shape and position, E. dufoei is much like the Upper Cambrian species Matthevia variabilis Walcott, 1885, and the Lower Ordovician species Chelodes whitehousei Runnegar, Pojeta, Taylor, and Collins (1979).

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Publication type Article
Publication Subtype Journal Article
Title Echinochiton dufoei, a new spiny Ordovician chiton
Series title Journal of Paleontology
DOI 10.1017/S0022336000044395
Volume 77
Issue 4
Year Published 2003
Language English
Publisher Cambridge University Press
Description 9 p.
First page 646
Last page 654
Country United States
State Wisconsin
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