Pachyglossella, Cooper, 1960

Hansen, Jesper & Holmer, Lars E., 2011, Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen 3076, Zootaxa 3076 (1), pp. 1-122 : 24

Pachyglossella ? sp.

Pl. 2, Figs. 8–12

Material. 28 fragments from samples JH-95 and JH-161, including the figured specimens, TSGF 16775–16778.

Description. Moderately large obolid with rather thick-walled and slightly convex shell. Ornamentation consisting of growth lines, occasionally developing into low rugae, and dense micro-pitting. Pits ordered in uneven concentric and radial rows. Visceral area with scattered coarse pits. Dense, rather fine pitting often developed in a band along anterior margin of visceral area.

Ventral valve with elongate-oval to slightly spatulate outline. Pseudointerarea orthocline, somewhat raised above and completely separated from valve floor. Distinct flexure lines separating broad inner propareas from outer propareas. Pseudointerarea marked by coarse growth lines. Muscle scars well impressed in at least one specimen.

Remarks. The material is too fragmentary for comparison with the known species of the genus.

Occurrence. 67 and 83 m above base of Profilbekken Member, Valhallfonna Formation, Basissletta in northeastern Ny Friesland, Spitsbergen.