The Echinoid Directory

Contributed by Jenna Sullivan, May 2007

Oriolampas hanguensis (Davies, 1943, p. 68)

[= Echinolampas hanguensis Davies, 1943, p. 68]

Diagnostic Features "Almost circular in plan. Slightly convex dorsal surface, with greatest height at the apica disc and boldly rounded sides. Rear profile is interrupted by the large transverse periproct just behind and above the resting plane of the base. Peristome underlies the apex, and is in the forepart of a shallow but wide actinal concavity. Apical system shows two anterior genital pores closer together than the posterior pair, and ocular pores minute. Ambulacral petals have widely open ends." (from Davies, 1943, p. 68)
Distribution Hangu Shale,  late Palaeocene, near Hangu, North West Frontier Province, Pakistan.
Type Holotype Natural History Museum E32393.
Classification and/or Status Species of Oriolampas.
Remarks Resembles Echinolampas lamadiformis to some extent, but E. hanguensis is larger, more circular, with less convex dorsal surface, more rounded sides, and less lanceolate petals with narrower interporiferous areas. (from Davies 1943)

Davies, A.M. 1943. Tertiary Echinoidea of the Kohat-Potwar Basin. Quarterly Journal of the Geological Society, London, 99, 63-79, pls 11-13..