|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Leptellina (Leptellina) rhacta
Strophomenata - Strophomenida - Leptellinidae
It was recombined as Leptellina (Leptellina) rhacta by Candela and Harper (2014).
|A. Williams 1962||Highly concavo-convex and subquadrate Leptellina with the pedicle valves almost threefifths as deep as long and nearly three-quarters as long as wide, dome-like in transverse profile with steeply sloping sides; ornamentation finely parvicosteUate with a modal count of 11 costellae per millimetre antero-medianly and 5 strongly accentuated costae conspicuous umbonaUy, concentric lamellae excessively developed in irregular bands except for the shell surface within 3 mm. of the umbo; lophophore platform well defined, over one-half as long as wide and almost three-fifths as long as the brachial valve; ventral muscle-scar subtriangular, about one-quarter as long as the pedicle valve.|