Skip to content Skip to navigation

Article: Revision of Pentaphyllum De Koninck, 1872 (Anthozoa, Rugosa)

Publication: Palaeontology
Volume: 52
Part: 3
Publication Date: May 2009
Page(s): 569 591
Author(s): Jerzy Fedorowski
Addition Information

How to Cite

FEDOROWSKI, J. 2009. Revision of Pentaphyllum De Koninck, 1872 (Anthozoa, Rugosa). Palaeontology52, 3, 569–591.

Online Version Hosted By

Wiley Online Library
Get Article: Wiley Online Library [Pay-to-View Access] |


Lectotypes of Pentaphyllum armatum and P. caryophyllatum, both of De Koninck (1872) have been sectioned for the first time and are completely illustrated; both are preserved as silicified outer shells with inner structures dissolved. The morphology of the calices strongly suggests that they have different taxonomic positions. Thus, their synonymy, suggested by Schindewolf (1942), is rejected. P. armatum, selected as type species for the genus by Hinde (1890) possesses six, not five leading major septa. Consequently, all taxa except Hexalasma Soshkina, 1928, and perhaps Pseudocryptophyllum Easton, 1944, are unrelated to Pentaphyllum. It is proposed to restrict the name Pentaphyllum to the lectotype. The well established Cryptophyllum Carruthers, 1919, which includes P. caryophyllatum, is considered valid. In addition to a brief analysis of Lower Carboniferous corals included here in Cryptophyllum, a few specimens from the British Tournaisian are described and illustrated to show morphological variability of specimens from the same bed. Review of earlier studies on these types of corals, discussion on the difference between zaphrentoid and cryptophylloid early ontogeny and its bearing on taxonomy, and description of taxa, are also included.
PalAss Go! URL: | Twitter: Share on Twitter | Facebook: Share on Facebook | Google+: Share on Google+