G. F. Matthew described the first specimens of Wiwaxia corrugata from the Ogygopsis Shale of the Canadian Rockies, in British Columbia (Matthew 1899). These specimens date to the Middle Cambrian, about 505 million years ago (Smith and Lane 2014). Charles Dolittle Walcott later found more complete specimens in the Burgess Shale in 1911 (Walcott 1911). Subsequently, Harry Whittington found hundreds of Wiwaxia fossils in the 1960s. Within the Burgess Shale, these fossils have been found in the Phyllopod bed. In the Canadian Rockies, they are also known from the Ogygopsis Shale, and localities on Mount Stephen (Morris 1985). Recently, Wiwaxia specimens have been found in the Kaili Biota in Guizhou, and in the Xiaoshiba Lagerstätte, in China (Zhao et al. 2005; Yang et al. 2014). Other specimens have been uncovered in the Czech Republic (Fatka et al. 2011). The Chinese specimens have been attributed to different species-W. taijiangensis, from the Kaili Biota and W. foliosa, from the Xiaoshiba Lagerstätte. Additional Canadian specimens from the Mount Cap Formation might also represent another species (Smith and Lane 2014).
- Fatka, O., P. Kraft, and M. Szabad. 2011. Shallow-water occurrence of Wiwaxia in the middle Cambrian of the Barrandian area, Czech Republic. Acta Palaeontologica Polonica 56:871-875.
- Matthew, G. F. 1899. Studies on Cambrian Faunas, No. 3, Upper Cambrian Fauna of Mount Stephen, British Columbia.-The Trilobites and Worms. Transactions of the Royal Society of Canada v:39-66.
- Morris, S. C. 1985. The Middle Cambrian Metazoan Wiwaxia Corrugata (Matthew) from the Burgess Shale and Ogygopsis Shale, British Columbia, Canada. Philos Trans R Soc Lond B Biol Sci 307:507-582.
- Smith, M. R., and P. Lane. 2014. Ontogeny, morphology and taxonomy of the soft-bodied Cambrian ‘mollusc’ Wiwaxia. Palaeontology 57:215-229.
- Walcott, C. D. 1911. Cambrian geology and paleontology. II. No. 5. Middle Cambrian Annelids. Washington D C Smithsonian lnst Misc Collect 57:(109-144).
- Yang, J., M. R. Smith, T. Lan, J. B. Hou, and X. G. Zhang. 2014. Articulated Wiwaxia from the Cambrian Stage 3 Xiaoshiba lagerstatte. Sci Rep 4:4643.
- Zhao, Y. L., M. Y. Zhu, L. E. Babcock, J. L. Yuan, R. L. Parsley, J. Peng, X. L. Yang, and Y. Wang. 2005. Kaili Biota: A taphonomic window on diversification of metazoans from the Basal Middle Cambrian: Guizhou, China. Acta Geol. Sin.-Engl. Ed. 79:751-765.
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