A revision of Heritschioides Yabe, 1950 (Anthozoa, Rugosa), latest Mississippian and earliest Pennsylvanian of western North America

作者：Fedorowski Jerzy^*; Bamber E Wayne; Stevens Calvin H

来源：Palaeontologia Electronica, 2014, 17(1): 11A.

• Late Serpukhovian-early Bashkirian
• colonial coral
• type specimens
• western North America
• allochthonous terranes

New data from a detailed study of the type and topotype collections of the type species of Heritschioides confirm the unique status of the genus as colonial and bearing extra septal lamellae. The associated microfossils establish its age as late Serpukhovian to early Bashkirian. The close connection of the cardinal septum to the median lamella and the axial structure points to the family Aulophyllidae. However, the inconsistent role of the protosepta in the formation of the median lamella is unique for Heritschioides. This feature and the colonial growth form allow its assignment to a separate subfamily, the Heritschioidinae Sando, 1985, which is closely related to the subfamily Aulophyllinae. So far, the subfamily Heritschioidinae is known to occur only in rocks along the western margin of North America.

• 出版日期2014