Madracis asperula Milne Edwards and Haime, 1849

CC species number = 16.5

Photograph: The top photo is an SEM image of an individual corallite with a scale bar of 1 mm.  The bottom photo is an entire colony specimen USNM 96482 (Moin Formation, Costa Rica. Plio-Pleistocene) with a scale bar of approximately 1 mm.

Synonyms: None.

Morphologic Description:

Colony Form: plocoid
Colony Shape: branching to nodular
Budding Type: mostly extramural
Corallite Diameter: 2.0-3.0 mm
Coenosteum Width: 0.4-0.9 mm
Septa Per Corallite:10 primary and 10 scondary that do not attach to columella, but are rudimentary nubs along edge of calyx
Lobes: none
Columella Structure: styliform
Columella Width: broad
Wall Structure:septothecal

Types: BM(NH), unnumbered syntypes (Madeira, Recent).


Plio-Pleistocene: Moin Formation, Costa Rica.

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Last updated on April 28, 1998 - vab.