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ABSTRACT
Rusophycus carleyi (James, Citation1885) is an ichnospecies that encompasses a variety of sizes and morphological variations that can be attributed to substrate-organism interaction(s) and taphonomic variation(s). R. carleyi ranges from the Cambrian to the Late Ordovician, with a cosmopolitan (global) distribution. Four ichnospecies are identified as junior synonyms of R. carleyi: morgati, moyensis, polonicus and radialis.
Acknowledgments
The following institutions and/or individuals (in no particular order) are thanked for either lending and/or accommodating the research of S.G: Eberhard Karls Universität Tübingen (D. Seilacher, M. Böhme, P. Havlik, and H. Luginsland); Royal Ontario Museum (D. Rudkin); Universitas Varsoviensis (A. Żylińska); Cincinnati Museum Center (B. Hunda); Geological Association of Canada; the Natural History Museum, London (J. G. Darrell); G. L. Pillola (Università di Cagliari); D. McIlroy (Memorial University); and Ministere de l'energie et des Mines de Maroc (permission for fieldwork); B. D. E. Chatterton lent photographic equipment, gave photographic advice, and provided an initial review. D. Pelling is thanked for his editorial skills and S. Donovan for his invaluable review.
Funding
We acknowledge and appreciate the support of the NSERC Discovery grant to S. George Pemberton for funding a portion of this project.