How valid is Cruziana Stratigraphy? |
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| Authors: | A Seilacher |
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| Institution: | (1) Geologisch-Paläontologisches Institut, Universität Tübingen, Sigwartstraße 10, D-72076 Tübingen, Germany;(2) Kline Geology Laboratories, Yale University, P.O. Box 208109, 06520 New Haven, CT, USA |
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| Abstract: | The stratigraphic value of trilobite burrows has recently been questioned because of a seemingly Ordovician form in the Lower Cambrian of Canada. Closer examination shows, however, that the Cambrian homeomorph (Cruziana pectinata n. sp.) has a significantly different scratch pattern. This raises the question whether the multiple scratches of the Ordovician Cruziana rugosa were also made by exopodites or by similarly shaped endopodites. |
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| Keywords: | Trilobites Trace fossils Cambrian Ordovician Stratigraphy |
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