Middle Permian productidine brachiopods from central Thailand (the Indochina Terrane) with paleobiogeographic implications
Masatoshi Sone, Chongpan Chonglakmani, Anisong Chitnarin
Abstract
Masatoshi Sone, Chongpan Chonglakmani, Anisong Chitnarin
Abstract
Three productidine brachiopods ofHaydenella, Paraplicatifera,andCompressoproductusare recovered from the Tak Fa Formation (Wordian, Middle Permian) of the upper Saraburi Limestone Group exposed at Khao Wong of central Thailand (the western margin of the Indochina Terrane). The latter two genera are new to the Permian of Thailand, and the new speciesParaplicatifera thaicais proposed herewith. Some taxonomic and nomenclatural problems in relation to the three genera are discussed. The assemblage suggests endemism for a Middle Permian marine faunule of the Indochina Terrane.
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Three productidine brachiopods ofHaydenella, Paraplicatifera,andCompressoproductusare recovered from the Tak Fa Formation (Wordian, Middle Permian) of the upper Saraburi Limestone Group exposed at Khao Wong of central Thailand (the western margin of the Indochina Terrane). The latter two genera are new to the Permian of Thailand, and the new speciesParaplicatifera thaicais proposed herewith. Some taxonomic and nomenclatural problems in relation to the three genera are discussed. The assemblage suggests endemism for a Middle Permian marine faunule of the Indochina Terrane.
Key concepts: Terrane, Permian, Paleontology, Geology, Gondwana, Margin (machine learning), Endemism, Structural basin