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Define
Definitions for
"Costae"
Keywords:
apical
,
monotis
,
thecated
,
transapically
,
coolia
A rib or rib-like structure, often located in the apical pore complex of thecated species; e.g. Coolia monotis.
guiamarina.com
Raised, thickened areas (ribs) between striae. May be oriented apically or transapically.
geosciences.unl.edu
Keywords:
cribrimorph
,
cheilostome
,
zooids
,
frontal
,
shield
the modified spines which form a frontal shield over the frontal membrane of cribrimorph cheilostome zooids.
angelfire.com
Keywords:
ridges
ridges.
gmbis.marinebiodiversity.ca