Morphologic Description: Unifacial explanate colonies; thickened outer wall; short to long series; open calices; horizontal bars on septocostae; smooth, thin septa; weak or absent columella.
Morphologic Diagnosis: Colony Form: meandroid, Colony Shape: platy (one-sided only), Budding: intramural, Columella: none, Corallite Size: medium (1.5 - 10mm), Wall Structure: synapticulothecal, Lobes: none.
Species (2 total):
|
Helioseris cucullata (Ellis & Solander 1786); CC Species #43. (extant) |
| Helioseris sp.A; CC Species #44. (extinct) |
