Schizoria cf. intermedia Cooper, 1989

Feldman, Howard R., Schemm-Gregory, Mena, Ahmad, Fayez & Wilson, Mark A., 2012, Jurassic rhynchonellide brachiopods from the Jordan Valley, Acta Palaeontologica Polonica 57 (1), pp. 191-204 : 202

Schizoria cf. intermedia Cooper, 1989

Fig. 3I.

Material.—One articulated specimen, AMNH FI−72409, bed 21b, Hamam Formation (Bathonian, middle Middle Jurassic); Arda section, Jordan.

Description.—Shell small (L = 21.6; W = 20.0; T = 15.4), elongate oval in longitudinal direction, maximum width anterior of midvalve, dorsal valve more globose than ventral valve; sides rounded, anterior commissure strongly uniplicate; ventral beak and foramen damaged; lateral commissure straight; about 17 angular to subangular costae with no bifurcations or intercalations.

Ventral valve slightly convex in lateral view, gently domed and almost flat on top, umbonal region barely swollen; sulcus broad and shallow, originating at midvalve, bearing 4 costae.

Dorsal valve moderately convex in lateral profile, and evenly but narrowly domed in anterior view; fold beginning almost at midvalve, bearing 5 costae.

The internal structures are unknown due to a lack of sufficient material for serial sectioning.

Discussion.—The shell resembles Schizoria intermedia Cooper, 1989 but a definite taxonomic assignment cannot be made at this time due to inadequate material for serial sectioning and a damaged beak on the single specimen in the collection.

Stratigraphic and geographic range.—Bathonian, Jordan.