NMITA:
Neogene Marine
Biota of Tropical
America
NMITA:
Neogene Marine
Biota of Tropical
America
Morphologic Description: plocoid, septa in two cycles of six; first cycle uniting with styliform columella.
Morphologic Diagnosis: Colony Form: plocoid, Colony Shape: branching or massive, Budding: extramural, Columella: styliform, Corallite Size: small ( < 1.5mm), Wall Structure: septothecal, Lobes: none.
Species (9 total):
S. affinis Duncan, 1863: CC species #5 (extinct).
S. panamensis Vaughan, 1919: CC species #12.5 (extinct).
S.
granulata Duncan, 1864: CC species #7 (extinct).
S.
imperatoris Vaughan, 1919: CC species #8 (extinct).
S.
minor Duncan, 1863: CC species #9 (extinct).
S. monticulosa Vaughan, 1925: CC species
#10 (extinct).
S.
undata Weisbord, 1971: CC species #12 (extinct).
S. portobellensis Vaughan, 1919: CC species
#12.6 (extinct).
S.
sp. A. : CC species #6 (extinct).
| Species | Colony size and shape | Colony surface | Corallite Diameter | Coenosteum Width |
| S. affinis | branches, 2-3 cm thick | bumpy with blunt swellings | 0.8-1.0 mm | moderate, =< corallite diameter |
| S. panamensis | large fronds, 1-2 cm by >> 2-3 cm | bumpy | 0.5-0.7 mm | narrow, << corallite diameter |
| S. granulata | branches, 4-6 mm thick | mostly smooth | 0.8-1.0 mm | moderate, =< corallite diameter |
| S. imperatoris | fronds, 1-2 cm by 2-3 cm | mostly smooth, sometimes ridged | 0.8-1.0 mm | moderate, =< corallite diameter |
| S. minor | branches < 1.5 cm in diameter | mostly smooth | 0.5-0.7 mm | wide, > corallite diameter |
| S. monticulosa | branches 3-5 cm thick | distinct protuberances, 4-7 mm spacing | 0.5-0.7 mm | moderate, =< corallite diameter |
| S. undata | massive, 10-35 cm in diameter | bumpy with blunt swellings | 0.8-1.0 mm | narrow, << corallite diameter |
| S. portobellensis | branches 4-6 mm thick | smooth | 0.5-0.7 mm | moderate, =< corallite diameter |
| S. sp. A. | branches 2-3 cm thick | smooth | 1.2-1.5 mm | narrow, << corallite diameter |