Revision of Microplasma parallelum Etheridge, 1899 (Cnidaria: Rugosa) from the Middle Devonian Moore Creek Limestone of New South Wales
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Abstract
The holotype and sole known specimen of the rugosan coral Microplasma parallelum Etheridge, 1899 is reassessed. This phaceloid species with only sporadic occurrence of isolated dissepiments or presepiments is here selected as type species of the new subgenus Loyolophyllum (Fasciloyolophyllum), which is erected to accommodate phaceloid species otherwise resembling Loyolophyllum (Loyolophyllum). Two other species previously referred to Fasciphyllum, from the Devonian of China, are also ascribed to this new subgenus. Review of the concept of Loyolophyllum sensu stricto leads to a reappraisal of those species assigned to it.
