†Arthrorhachis tarda Barrande 1846 (artiopod)
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Artiopoda - Agnostida - Metagnostidae
Synonym: Agnostus glabratus Angelin 1851
Belongs to Arthrorhachis according to P. Ahlberg 1989
Sister taxa: Arthrorhachis danica, Arthrorhachis elliptifrons, Arthrorhachis mobergi, Arthrorhachis tardus
Ecology: slow-moving epifaunal detritivore
Distribution:
• Ordovician of Belgium (2 collections), China (5), the Czech Republic (1), Denmark (3), Italy (2), Norway (2), Sweden (19), the United Kingdom (1)
Total: 35 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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