Actinastrea d’Orbigny, 1849
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publication ID |
https://doi.org/10.1186/s13358-021-00238-8 |
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persistent identifier |
https://treatment.plazi.org/id/0390879F-3842-FFB4-2DB7-FC0EE37AFA2D |
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treatment provided by |
Felipe |
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scientific name |
Actinastrea d’Orbigny, 1849 |
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Genus Actinastrea d’Orbigny, 1849 View in CoL
Type species. Actinastrea goldfussi d’Orbigny, 1850 a, 1850b , Maastrichtian of Te Netherlands (Maastricht).
Diagnosis. Corallum colonial, often massive to subcolumnar, cerioid, cerio-plocoid. Budding extracalicular and extracalicular-marginal. Corallites small and prismatic in outline, often directly united by their walls. Columella styliform or short-lamellar. No intercalicinal coenosteum. Synapticular structures present peripherally. Paliform structures occasionally present. Endothecal dissepiments thin, sometimes arranged forming an innercorallite ring which is complete or incomplete. Septa compact, generally non-confluent, radially or bilaterally arranged, beaded marginally, and composed of a series of simple trabeculae, varying in diameter (up to 150 µm). Septal flanks covered by spiniform granulae. Wall septothecal to septoparathecal, with occasionally occurring pores (lacunes).
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