This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
Current identification/main database link: Blefuscuiana laculata Banner, Copestake, & White, 1993
Notes: The name Blefuscuiana laculata subsp. laculata Banner, Copestake, & White 1993 was not explicitly introduced by them but is the correct term under the ICZN for the sub-species which they described as Blefuscuiana laculata sensu stricto
Original Description: Blefuscuiana laculata (sensu stricto).
Diagnosis. Characterised by having a roughly quadrangular test outline, an open umbilicus, and intercameral sutures at the periphery of the test which form angles of about 120-135 degrees; the test surface lacks perforation cones.
Extra details from original publication:
SYNONYM. 1979 Clavihedbergella eocretacea Neagu; Sigal: 290; pl. 3, figs. 31, ?30
REMARKS. B. laculata s.s. closely resembles P. sigali s.s. (see above) with which it occurs, the only significant difference being the number of chambers in the final whorl abutting the umbilicus (5 and 4 respectively; compare PI. 3, figs. 1- 2 with PI. 2, fig. 2). The oldest known occurrence of both taxa is Early Barremian. The refore, it seems likely that P. sigali s.s. gave rise to B. laculata s.s. shortly after the former taxon's first appearance; P. sigali s.s. itself ranges up to the Late Aptian.
DISTRIBUTION. Central North Sea (wells); sub-seabed Atlantic, offshore Portugal (DSDP Site 398).
STRATIGRAPHY. Sigal (1979) believed that this form was confined to the Barremian stage (as characterised by ammonites) in DSDP Site 398 (200 km off the coast of Portugal). We record it from the Early Barremian of the Central North Sea.
Banner, F.T.; Copestake, P. & White, M.R., (1993). Barremian-Aptian Praehedbergellidae of the North Sea area: a reconnaisance. Bulletin of the Natural History Museum, London (Geology), 49: 1-30. Sigal 1979 [sorry, not in our bibliography yet]
Banner, F.T.; Copestake, P. & White, M.R., (1993). Barremian-Aptian Praehedbergellidae of the North Sea area: a reconnaisance. Bulletin of the Natural History Museum, London (Geology), 49: 1-30.
Sigal 1979 [sorry, not in our bibliography yet]
Blefuscuiana laculata laculata compiled by the pforams@mikrotax project team viewed: 18-10-2017
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