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MORPHOLOGY, TAXONOMY AND DISTRIBUTION OF THE CRETACEOUS CORAL GENUS AULASTRAEOPORA (LATE BARREMIAN-EARLY CENOMANIAN; SCLERACTINIA)

HANNES LÖSER

Abstract


The Cretaceous coral genus Aulastraeopora is being revised, mainly on the basis of sample material. This genus of solitary growth form is characterised by medium-sized to large specimens, compact septa in a regular hexameral or tetrameral symmetry and lonsdaleoid septa. Related genera are Preverastraea and Apoplacophyllia, which only differ by their cerioid-astreoid and phaceloid growth forms. There are four species of Aulastraeopora. The genus, which occurred world-wide, is restricted to the period from the Late Barremian to the Late Cenomanian, being most common in the Aptian to Early Albian. Forty-one samples are either known from the literature or have been to hand. This makes Aulastraeopora a rare genus.

 


Keywords

Scleractinian corals; Aulastraeopora; Cretaceous; Systematics; Italy

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DOI: https://doi.org/10.13130/2039-4942/6366

NBN: http://nbn.depositolegale.it/urn%3Anbn%3Ait%3Aunimi-15490

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