Cyclampterium_ brachythorax Sanfilippo and Riedel 1970.jpg
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Cyclampterium_ brachythorax Sanfilippo and Riedel 1970.jpg<% linkedspecs %>
Current identification:
Original Description
Shell moderately robust, approximately oblate-ellipsoidal in over-all form. Cephalis sub-spherical, poreless or with a few small pores. The thorax is broadly conical proximally, then expands rapidly and contracts distally, so that it is 1.5-2 times as broad as it is long. Thoracic pores are circular, regular, increasing in size distally from the slight collar stricture. Thoracic surface thorny. Abdomen rarely preserved, closed, ranging from a slightly convex cap to hemispherical, with pores similar in size to those of the thorax but less regular.
(Based on 16 specimens) length 220-310µm. Length of thorax 1 25-195µm, its maximum breadth 240-335µm. Distinguishing characters (rw): This species is distinguished from C.? tanythorax and C. ? neatum by the pronounced compression of the thorax along the axis of the shell.
Etymology: From the Greek brachys = short, and thorax.
Sanfilippo, A. & Riedel, W. R. (1970). Post-Eocene "closed" theoperid radiolarians. Micropaleontology. 16(4): 446-462. gsReferences:
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Cyclampterium brachythorax compiled by the radiolaria@mikrotax project team viewed: 24-2-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=250766 Go to Archive.is to create a permanent copy of this page - citation notes |