Rhynchonellata - Orthida - Plaesiomyidae
Full reference: P. E. Raymond. 1911. The Brachiopoda and Ostracoda of the Chazyan. Annals of the Carnegie Museum 7:215-259
Parent taxon: Plaesiomys according to P. E. Raymond 1911
Sister taxa: Dinorthis (Plaesiomys) saxbyana, Dinorthis (Plaesiomys) solaris, Plaesiomys (Plaesiomys), Plaesiomys anticostiensis, Plaesiomys bellilamellosus, Plaesiomys bellistriatus, Plaesiomys carletona, Plaesiomys cutterensis, Plaesiomys fidelis, Plaesiomys idahoensis, Plaesiomys iphigenia, Plaesiomys multiplicata, Plaesiomys occidentalis, Plaesiomys porcata, Plaesiomys proavita, Plaesiomys rockymontana, Plaesiomys saxbiana, Plaesiomys subcircularis, Plaesiomys subquadratus
Subtaxa: Plaesiomys (Valcourea) strophomenoides
Ecology: stationary epifaunal suspension feeder
Distribution:
• Chazyan of United States (2: New York collections)
Total: 2 collections each including a single occurrence