NMITA:Neogene Marine Biota of Tropical America

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Colpophyllia amaranthus (Houttuyn, 1772)


Holotype: lost

Morphologic Description:
Series Length: medium (2-5cm)
Meander series sinuosity: sinuous
Colony size: medium (10-30cm)
Attachment of skeleton: attached
Epitheca: absent
Wall development between buds: most
Symmetry of bud geometry: multi-directional
Calice or valley width: very large (>15mm)
Calice relief: very high (>10mm)
Calicular platform shape: v-shaped
Coenosteum: narrow (< valley width)
Exothecal dissepiments: present
Number of septal cycles: >3
Septal spacing (per 5mm): <6
Relative septa thickness: equal
Relative costae thickness: equal
Continuity of costae: dis-continuous
Septal lobes: absent
Paliform lobes: present
Columella continuity: dis-continuous
Columella width: <=1/4
Endothecal dissepiments: abundant
Wall structure: parathecal
Double or single wall: double

Late Pliocene : Q.Chocolate Fm., Buenos Aires, Costa Rica; Moin Fm., Pueblo Nuevo, Costa Rica;
Recent : less than 10m, Discovery Bay, Jamaica;

Last updated on June 16, 1998-kgj.

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