Taphonomy of ‘cystoids’ (Echinodermata: Diploporita) from the Napoleon quarry of southeastern Indiana, USA: The Lower Silurian Massie Formation as an atypical Lagerstätte
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- 作者：James R. Thomkaa ; jthomka@uakron.edu" class="auth_mail" title="E-mail the corresponding author ; Carlton E. Brettb ; Thomas E. Bantelc ; Allison L. Youngb ; Donald L. Bissettc
- 关键词：Obrution ; Encrustation ; Blastozoa ; Multi-element skeleton taphonomy ; Lagerstä ; tten
- 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
- 出版年：2016
- 出版时间：1 February 2016
- 年：2016
- 卷：443
- 期：Complete
- 页码：263-277
- 全文大小：2961 K
文摘
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This study represents the first detailed taphonomic assessment of diploporite “cystoids”.
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Preservation of articulated thecae is the result of more than simple rapid burial.
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Geopetal indicators indicate episodes of exhumation and reorientation.
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Early cementation of infilling sediment was significant in controlling preservation.
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Diploporites are likely more resistant to disarticulation than previously thought.