†Pionaspis Denison 1964 (jawless fish)
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Pteraspidomorpha - Cyathaspidiformes - Cyathaspididae
Parent taxon: Cyathaspididae according to L. Sallan et al. 2018
See also Sepkoski 2002
Sister taxa: Alainaspis, Anglaspidinae, Archegonaspis, Boothiaspidinae, Cyathaspidinae, Cyathaspis, Dikenaspis, Eoarchegonaspis, Faberaspis, Homalaspidella, Irregulareaspidinae, Poraspidinae, Ptomaspis, Sanidaspis, Tolypelepidinae, Vernonaspis
Subtaxa: Pionaspis acuticosta Pionaspis amplissima Pionaspis ebenina Pionaspis rossi
Ecology: planktonic suspension feeder
Distribution:
• Devonian of Canada (9: Northwest Territories, Nunavut collections)
• Silurian of Canada (1: Nunavut)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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