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Pseudoceratium pelliferum ssp. radiculatum
Plate 20, Figures 17, 18
Holotype: Plate 20, Figures 18.
Type Locality: Vergol outcrop, early Valanginian, Bed B136M, pertransiens ammonite Zone, premolicus Sub-zone. Holotype: Slide B136/R1, E.F. T56.0.
Derivation of Name: From the Latin radix, root - in reference to the long antapical horn.
Diagnosis: A large subspecies of Pseudoceratium pelliferum with a particularly long antapical horn and a reduced right lateral. The operculum is invariably detached.
Dimensions: Holotype Length - 129 μm. Width - 104 μm.
Overall - 149 (129) 113 μm × 104 (84) 78 μm.
Specimens measured - 8 (all with the operculum detached).
Remarks: This subspecies has a very restricted range at Vergol, being confined to Beds B136M to B147M, pertransiens ammonite Zone, premolicus Sub-zone and it therefore appears to be characteristic of the basal Valanginian.
Holotype: Plate 20, Figures 18.
Type Locality: Vergol outcrop, early Valanginian, Bed B136M, pertransiens ammonite Zone, premolicus Sub-zone. Holotype: Slide B136/R1, E.F. T56.0.
Derivation of Name: From the Latin radix, root - in reference to the long antapical horn.
Diagnosis: A large subspecies of Pseudoceratium pelliferum with a particularly long antapical horn and a reduced right lateral. The operculum is invariably detached.
Dimensions: Holotype Length - 129 μm. Width - 104 μm.
Overall - 149 (129) 113 μm × 104 (84) 78 μm.
Specimens measured - 8 (all with the operculum detached).
Remarks: This subspecies has a very restricted range at Vergol, being confined to Beds B136M to B147M, pertransiens ammonite Zone, premolicus Sub-zone and it therefore appears to be characteristic of the basal Valanginian.