†Rhactorthis crassa Williams 1963 (lamp shell)
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Rhynchonellata - Orthida - Rhactorthidae
Belongs to Rhactorthis according to Williams 1963
Sister taxa: none
Type specimen: Its type locality is Gelli-grin Group, Caradoc, Bala District, Merionethshire, which is in a Longvillian offshore mudstone/siltstone in the United Kingdom
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of the United Kingdom (2 collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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