Microporellidae

General description: 

Primary orifice semicircular: ascus opening via an ascopore, proximal to the orifice. Frontal shield with scattered pores.  Ovicell present. Oral spines and avicularia present or absent.

(Hayward and Ryland, 1999)

Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith