User:Starsandwhales/Septastraea

Septastraea is an extinct genus of stony coral. It was discovered by Alcide d'Orbiginy in 1849. Synonyms include Glyphastraea (Duncan 1887) and Hexastraea (Sismonda 1871). It lived in coastal, shallow, and reef environments along what is now the south-eastern seaboard of the United States.