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Article: The bivalved arthropods Isoxys and Tuzoia with soft-part preservation from the Lower Cambrian Emu Bay Shale Lagerstätte (Kangaroo Island, Australia)

Publication: Palaeontology
Volume: 52
Part: 6
Publication Date: November 2009
Page(s): 1221 1241
Author(s): Diego C. García-Bellido, John R. Paterson, Gregory D. Edgecombe, James B. Jago, James G. Gehling and Michael S. Y. Lee
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How to Cite

GARCÍA-BELLIDO, D. C., PATERSON, J. R., EDGECOMBE, G. D., JAGO, J. B., GEHLING, J. G., LEE, M. S. Y. 2009. The bivalved arthropods Isoxys and Tuzoia with soft-part preservation from the Lower Cambrian Emu Bay Shale Lagerstätte (Kangaroo Island, Australia). Palaeontology52, 6, 1221–1241.

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Abstract

Abundant material from a new quarry excavated in the lower Cambrian Emu Bay Shale (Kangaroo Island, South Australia) and, particularly, the preservation of soft-bodied features previously unknown from this Burgess Shale-type locality, permit the revision of two bivalved arthropod taxa described in the late 1970s, Isoxys communis and Tuzoia australis. The collections have also produced fossils belonging to two new species: Isoxys glaessneri and Tuzoia sp. Among the soft parts preserved in these taxa are stalked eyes, digestive structures and cephalic and trunk appendages, rivalling in quality and quantity those described from better-known Lagerstätten, notably the lower Cambrian Chengjiang fauna of China and the middle Cambrian Burgess Shale of Canada.
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