Fredericksolasma nummulus Waagen 1882 (lamp shell)

Rhynchonellata - Terebratulida - Pseudodielasmatidae

Alternative combination: Dielasma nummulus

Full reference: W. Waagen. 1882. Productus Limestone Fossils, Part IV, fas. 1. Salt Range Fossils, Palaeontologia Indica, Series 13 1(4):329-390

Belongs to Fredericksolasma according to T. N. Smirnova 2007

See also Huang 1933, Liao 1987, Reed 1944 and Waagen 1882

Sister taxa: Fredericksolasma darvasica, Fredericksolasma lata, Fredericksolasma rhomboidalis, Fredericksolasma sublaevis

Type specimen: Its type locality is Katta, basal Middle Productus-limestone (bed 12), Salt Range, which is in a Capitanian carbonate limestone in the Wargal Formation of Pakistan

Ecology: stationary low-level epifaunal suspension feeder


• Permian of China (6 collections), Pakistan (14)

Total: 20 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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