Edwardsomeandra
Beauvais, 1965 , p. 873
Type Species
Meandrina vermicularis Mc Coy, p. 402,; Original Designation
Type Specimen: Unknown; BGS n°3805; Verified; Dry Preserved
Type Locality: Bathonian between Barnsley Furze and Barnsley near Cirencester according to Beauvais 1965. M'Coy 1848 cites Leckhampton. Milne Edwards and Haime 1851cite two samples one at Leckhampton (Cambridge collection) and the other near Bath.
Beauvais used Comoseris vermicularis Milne Edwards and Haime 1851, p. 122, pl.24, fig. 1 for her description. The specimen I have used for this description is this specimen used by Beauvais to erect her new genus but not the type-specimen of the Mc Coy's collection I did not see. If it appears they are different, L. Beauvais should be considered as the author of Edwardsomeandra vermicularis.
Description
Massive meandroid corallum with long sinuous tectiform collines without ambulacrum. Septa of valleys present. Lower surface with thin equal costae. Intracalicinal increase producing valleys in the width of which several corallites take place. Radial elements homogeneously thick, compact. Septa free or joined, rather constant in thickness, straight to bent at an angle, confluent to not confluent (dominant). Distal edge with small irregularly elongated teeth, lateral faces with small scarce acute granules, pali absent. Microstructure unknown. Endotheca of small numerous dissepiments (but difficult to observe on the type specimen). Axial zone with a distinct fossa. Synapticulae not observed, wall in strong relief often in zigzag pattern and septothecal when radial elements are not confluent possibly in part parathecal.
Comparisons
Comoseris has porous septa. Collignonastraea has a columella and corallite series in one row in a valley.
Remarks
One nominal species known in Jurassic
Distribution
- Western Europe; Middle Jurassic
This page has been in preparation since 18-Aug-2009 17:32
This version was contributed by Bernard Lathuilière on 14-Dec-2013 09:46.
Page authors are: Bernard Lathuilière. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Bernard Lathuilière
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