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A new carcinosomatid eurypterid from the Siluro-Devonian of northern Vietnam

Selden, Paul A.
; 
Truong, Doan Nhat
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Abstract
A new carcinosomatid eurypterid, Rhinocarcinosoma dosonensis sp. nov., and Hughmilleria sp., are described from the Do Son Formation of the Do Son Peninsula, northern Vietnam. R. dosonensis is characterized by podomere 7 of prosomal appendage VI produced into an anterodistal spine, a metastoma with a cordate posterior margin, and an indented opisthosomal differentiation (i.e. preabdomen-postabdomen margin is concave). The Do Son Formation was originally interpreted as Late Devonian (Givetian/Frasnian) in age but the unit containing the eurypterid assemblage is now considered much older (Late Silurian). A deltaic palaeoenvironmental setting is interpreted from biotic associations and sedimentological evidence.
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Date
2002
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The Palaeontological Association
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Geology Scholarly Works
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Selden_2002_A new carcinosomatid eurypterid Vietnam.pdf
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Keywords
Chelicerata, Eurypterid, Carsinosomatidae, Silurian, Vietnam, Stratigraphy
Citation
Braddy, S. J., Selden, P. A. & Truong, D. N. 2002. A new carcinosomatid eurypterid from the Siluro-Devonian of northern Vietnam. Palaeontology 45, 897–915. http://dx.doi.org/10.1111/1475-4983.00267
URI
https://hdl.handle.net/1808/8358
DOI
10.1111/1475-4983.00267
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