Draboviidae

Classification
Phylum: Brachiopoda
Class: Rhynchonellata
Order: Orthida
Family: Draboviidae (Havlicek, 1950)
Cincinnatian Genera: Pionodema

Geologic Range
Early Ordovician – Late Devonian

Common Paleoecology
Draboviidae is an extinct family of stationary epifaunal suspension feeders

Description of the Family

  • Normally ventribiconvex, rectimarginate, multicostellate enteletoids with aditicules
  • Ventral and dorsal interareas apsacline and anacline, respectively
  • Ventral muscle scar suboval to subtriangular
  • Dental plates divergent
  • Dorsal interior with extensions of brachiophores plates commonly convergent forward onto median ridge
  • Anterior muscle scars usually larger than posterior pair

Published Descriptions

Treatise on Invertebrate Paleontology, Part H, Vol. 3 (2000):

  • Normally ventribiconvex, rectimarginate, multicostellate enteletoids with aditicules; ventral and dorsal interareas apsacline and anacline, respectively; ventral muscle scar suboval to subtriangular; dental plates divergent; dorsal interior with extensions of brachiophores plates commonly convergent forward onto median ridge; anterior muscle scars usually larger than posterior pair; fulcra plates present.

Pionodema