The bivalved arthropods Isoxys and Tuzoia with soft-part preservation from the Lower Cambrian Emu Bay Shale Lagerstatte (Kangaroo Island, Australia)
The bivalved arthropods Isoxys and Tuzoia with soft-part preservation from the Lower Cambrian Emu Bay Shale Lagerstatte (Kangaroo Island, Australia)
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DOI：
10.1111/j.1475-4983.2009.00914.x
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发表时间：
2009-11-01
期刊：
影响因子：
2.6
通讯作者：
Lee, Michael S. Y.
中科院分区：
文献类型：
--
作者：
Garcia-Bellido, Diego C.;Paterson, John R.;Lee, Michael S. Y.
下寒武统鸸鹋湾页岩（南澳大利亚州袋鼠岛）新采石场挖掘出的丰富材料，特别是该伯吉斯页岩类型地区以前未知的软体特征的保存，使我们能够对 20 世纪 70 年代末描述的两种双壳节肢动物类群（Isoxys communis 和 Tuzoia australis）进行修正。这些藏品还产生了属于两个新物种的化石：Isoxys glaessneri 和 Tuzoia sp。这些类群中保存的柔软部分包括有柄的眼睛、消化结构以及头部和躯干附肢，在质量和数量上可与更著名的 Lagerstatten（特别是中国的下寒武统澄江动物群和加拿大中寒武统 Burgess 页岩）中描述的那些相媲美。
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 Lagerstatten, notably the lower Cambrian Chengjiang fauna of China and the middle Cambrian Burgess Shale of Canada.