Eliášová 1975, p.20

Type Species

Hykeliphyllum lepidum Eliášová 1975, p. 21, pl. 11 fig. 1abc, text fig. 13; Original Designation

Type Specimen: Holotype; ÚÚG HF 120; Verified; Dry Preserved

Type Locality: Tithonian (Upper Jurassic)-Berriasian (Lower Cretaceous) from Štramberk (Czech Republic)

the holotype is composed of one fragment of colony and two thin sections



Corallum cerio-phaceloid, made of short, polygonal corallites with the exception of corallites oval in shape at the corallum margin. Epitheca transversally plicate. No costae. Increase by Taschenknospung. Calice with an elongated, eccentric fossa in crescent. Radial elements are compact, free, of a variable thickness, unequal in lenght, straight or curved. The cardinal septum and a group of adjacent septa at its sides are parallel to each other, longer and thicker than other septa. Lonsdaleoid septa present. Lateral faces poorly ornamented. Bilateral symmetry marked by the cardinal septum slightly longer than others. Endotheca with dissepimental marginarium and the inner part made of subtabular and vesiculose dissepiments. No columella. No synapticulae. Wall pachythecal.


The genus is close to Pseudopisthophyllum, from which it differs in a cerioid type of corallum only partly dissociating peripherally into a sub-phaceloid type, while the latter genus has exclusively phaceloid coralla made of long, well isolated corallites.


Two nominal species known in Jurassic


  • Central Europe, East Asia; Middle Jurassic - Early Cretaceous

This page has been in preparation since 18-Aug-2009 18:05

This version was contributed by Bernard Lathuilière on 02-Jun-2011 10:11.

Page authors are: Bernard Lathuilière Helena Eliášová. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Bernard Lathuilière

Hykeliphyllum lepidum
Hykeliphyllum lepidum holotype