Latimaeandraraea
Fromentel, 1861, p.247
Latimaeandraraea is an objective junior synonym of Meandrarea
Type Species
Meandraraea marcouana Etallon 1859, p. 128; Subsequent Designation probably by Wells 1987, vol. 16 n°1, p. 51
Type Specimen: Syntype; MNHN M03374; Verified; Dry Preserved
Type Locality: Kimmeridgian (Upper Jurassic) from Valfin lès St Claude (France)
Classification
Description
(based on syntypes) Massive meandroid corallum with short to elongated valleys. No observed epitheca. Intracalicular increase producing sinuous valleys, rather radially arranged, at least at the margin of the colony. Valley septa not systematically present and distinct, collines without ambulacrum, rather tholiform, occasionnaly tectiform. Radial elements pennular, perforate, anastomosed, straight to curved, subequal. Distal edge moniliform with equal regular teeth. No palis. Radial symmetry disturbed by bilateral symmetry, elongation of valleys and anastomoses of septa. Endotheca not observed. Center of calices with a small fossa not very distinct in which small trabecules may be tightly arranged. Synapticulae present, especially near the collines. Wall probably synapticulothecal.
Remarks
8 Jurassic and 22 Cretaceous (Löser 2000) nominal species cited.
This page has been in preparation since 19-Aug-2009 15:09
This version was contributed by Bernard Lathuilière on 04-Mar-2011 10:54.
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
|