Cairnsipsammia
Baron-Szabo, 2015, p. 223
The holotype of the type species is housed at the Walsermuseum Riezlern (Vorarlberg, Austria) under wamu-464 (Merbeler coll.).
Type Species
Cairnsipsammia merbeleri Baron-Szabo, 2015, p. 223; Original Designation
Type Specimen: Holotype; wamu-464; Verified; Dry Preserved
Type Locality: upper Barremian-lower Aptian (Schrattenkalk Formation), Vorarlberg, Austria.
Classification
Diagnosis
Corallum colonial, massive, plocoid to submeandroid. Corallites mainly monocentric, occasionally di- and polycentric, irregularly distributed over the colony or arranged in wavy ramified or non-ramified series. Corallite centers distinct or subdistinct. Budding mainly intracalicular, occasionally extracalicular. Costosepta compact or porous, confluent to non-confluent. They are nearly smooth or covered by small (up to 50 µm) spiniform and rounded granules laterally, and are moniliform or irregularly granulated marginally. POURTALÈS plan present. Columella well developed or nearly absent; when present spongy-papillose or made of twisted and elongate segments that are arranged in a lamellar fashion. Columella discrete or connected to trabecular extensions of some axial edges of septa. Pali present or absent. Endothecal dissepiments thin, vesicular to subtabular, rather abundant. Intercorallite coenosteum absent or narrow (up to 2 mm wide), porous, reticulate with granular surfaces, costate. Wall synapticulothecal to synapticuloparathecal, porous. Secondary septothecal thickenings present or absent.
Distribution
- Western Europe; Early Cretaceous
This page has been in preparation since 11-Mar-2016 18:37
This version was contributed by Rosemarie Baron-Szabo on 22-Jul-2017 15:11.
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
|