Trace fossils of Cambrian aglaspidid arthropods
- 1 April 1988
- journal article
- research article
- Published by Scandinavian University Press / Universitetsforlaget AS in Lethaia
- Vol. 21 (2) , 139-146
- https://doi.org/10.1111/j.1502-3931.1988.tb00804.x
Abstract
A new trace fossil, Raaschichnus gundersoni, from the Upper Cambrian St. Lawrence Formation of Wisconsin [USA], was produced by an aglaspidid arthropod. The rusophyciform trace, which occurs singly and in series, is distinctive in showing marks left by the tail-spine. Other trace fossils previously considered to have been made by aglaspidids were probably excavated by animals lacking a tail-spine and with appendage morphologies very different from the aglaspidids of Wisconsin.This publication has 12 references indexed in Scilit:
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