Phacopida

Deiphon dikella

Order Phacopida / Suborder Cheirurina / Superfamily Cheiruroidea / Family Cheiruridae

Rhuddanian to Aeronian (Llandovery, Silurian)UK
Classification
Order Phacopida / Suborder Cheirurina / Superfamily Cheiruroidea / Family Cheiruridae
Genus
Deiphon Barrande, 1850
Genus author
Barrande J.
Genus etymology
None
Species
D. dikella Whittard, 1934
Species author
Whittard W. F.
Species etymology
dikella, Greek, a fork, referring to the shape of the posterior pygidial spines
Age
Rhuddanian to Aeronian (Llandovery, Silurian)
Distribution
UK
Diagnosis
Compared with Deiphon barrandei, this species has a relatively larger, more regularly circular glabella in dorsal view, denser tubercles, and less curved posterior pygidial spines, with the surface densely covered with coarse and fine granules in the same style as the glabella.