†Dinorthis berwynensis angusta Williams 1963 (lamp shell)
Rhynchonellata - Orthida - Plaesiomyidae
Alternative combination: Dinorthis angusta
Full reference: A. Williams. 1963. The Caradocian brachiopod faunas of the Bala District, Merionethshire. Bulletin of the British Museum of Natural History (Geology) 8(7):327-471
Belongs to Dinorthis berwynensis according to A. Williams 1963
See also Wagner 2020
Sister taxa: none
Type specimen: BB28978-79, a valve (pedicle valve).
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of the United Kingdom (3 collections)
Total: 3 collections each including a single occurrence