Billingsariidae
Classification
Phylum: Cnidaria
Class: Anthozoa
Subclass: Tabulata
Family: Billingsariidae (Sokolov, 1950)
Cincinnatian Genera: Foerstephyllum
Geologic Range
?Middle Ordovician, Late Ordovician – Early Silurian
Common Paleoecology
Billingsariidae is an extinct family of stationary epifaunal suspension feeders which have been interpreted to have hosted symbiotic algae in their tissues
Description of the Family
- Corallum cerioid
- Corallites slender
- Septa short, stout, alternating in size
- Tabulae horizontal
Published Descriptions
Treatise on Invertebrate Paleontology, Part F, 2 of 2 (1981):
- Corallum cerioid partly asteroid; corallites slender; septa short, stout, in some alternating in size, each a series of near vertical large monacanths; communication between neighboring tabularia rare to absent; tabulae horizontal; axial trabeculae may occur, forming discontinuous axial structure.
Foerstephyllum
