Wells, 1973

Type Species

Texastrea catenata Wells, 1973; Original Designation Wells, 1973

Type Specimen: Holotype; ; Verified; Unknown

Type Locality: Middle Albian of Texas (Fredericksburg Group, Edwards Limestone), USA.

The holotype of the type species is housed at NMNH (Washington, DC) under I-71265.




Like Actinastrea but colony often forms imbricating palisades by extracalicular-lateral budding. Corallites are prismatic and cerioid where clustered.


Colonial, cateniform (stauromatiform) growth-habit. Budding extracalicinal-lateral, producing imbricating palisades of cylindrical corallites closely joined, more or less linearly. Corallites becoming prismatic and cerioid where clustered. Corallite wall septoparathecal. Septa composed of 5 or 6 simple, fused trabeculae inclined inward and upward from the wall. Columella styliform.


Texastrea most likely represents a morpho(sub-)genus of Actinastrea. The morphological changes are probably due to high-rate sediment influx and/or parasitic infestation (Baron-Szabo, 2014, p. 20).


  • North America; Early Cretaceous

This page has been in preparation since 12-Jun-2010 17:02

This version was contributed by Rosemarie Baron-Szabo on 30-Oct-2016 17:32.

Page authors are: Rosemarie Baron-Szabo. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Rosemarie Baron-Szabo

Texastrea catenata Wells, 1973, holotype