†Opsiconidion Ludvigsen 1974 (lamp shell)
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Lingulata - Acrotretida - Biernatidae
Alternative spelling: Opisconidion
Synonym: Caenotreta
Parent taxon: Biernatidae according to A. Williams et al. 2000
See also Holmer 1989 and Sepkoski 2002
Sister taxon: Biernatia
Subtaxa: Opsiconidion decessus Opsiconidion nanus Opsiconidion praecursor
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of the Czech Republic (2 collections), United States (1: Alaska)
• Silurian of Australia (4), Austria (2), the Czech Republic (1), the United Kingdom (4)
• Ordovician of Estonia (9), the United Kingdom (1), United States (1: New York)
Total: 25 collections including 31 occurrences
Specimen images are retrieved through the ePANDDA API.
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