?Early Ordovician, Middle Ordovician – Early Silurian
Sryingophyllidae 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
- Corallite arrangement variable (cerioid, phacelocerioid, or tollinoid)
- Tabularia communicating by nearly round interseptal spaces or tubes/channels
- Septa short, stout
- Corallum cerioid, phacelocerioid or tollinoid ; tabularia communicating by more or less rounded interseptal spaces or by connecting canals or channels, or coenenchymal platforms; septa short, stout basally, each a palisade of subhorizontil to steeply inclined conjunct or discreet monacanths; tabulae horizontal except in Uralopora.