Lamptonium_ colymbus Foreman 1973.jpg
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Lamptonium_ colymbus Foreman 1973.jpg<% linkedspecs %>
Current identification/main database link: Lamptonium colymbus Foreman 1973
Original Description
Shell large, of two segments, with inflated thorax bearing wings. Cephalis subspherical, with a few circular pores, and bearing a bladed horn never observed complete. Collar stricture with six collar pores internally, externally indistinct, contour of cephalis merges with that of thorax. Thorax proximally truncate-conical, distal three-quarters inflated or expanded, with approximately straight sides, bearing three three-bladed wings extending from upper part of inflated thorax. Distally thorax constricted, aperture surrounded by a smooth, rarely roughened rim. Pores generally circular to subcircular, regularly quincuncially ar-ranged in longitudinal rows, rarely more irregular in shape and arrange-ment. Surface roughened with tiny nodes.
(Based on twenty specimens) Length of cephalis and thorax, exclusive of horn. 16()-21O µm; greatest width of thorax 145-180µm. Distinguishing characters (rw): This species is distinguished from L. pennatum by its lack of a third segment and larger size from L. (?) incohatum as described under that species.
Foreman, H. P. (1973a). Radiolaria of Leg 10 with systematics and ranges for the families Amphipyndacidae, Artostrobiidae, and Theoperidae. Initial Reports of the Deep Sea Drilling Project. 10: 407-474. gsReferences:
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Lamptonium colymbus compiled by the radiolaria@mikrotax project team viewed: 27-2-2021
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