Catalog entries: Clathrocyclas semeles
Original description: Shell conical-campanulate, with two distinct strictures. Length of the three joints = 2: 8: 1, breadth = 2: 8: 10. Cephalis hemispherical, with three divergent, conical horns (the caudal horn, directed downwards, much longer than the occipital and frontal borns). Pores of the thorax large, roundish. Abdomen (as in the two preceding species) with only a single circle of forty to fifty small square pores. Coronal with about the same number of short, triangular, almost horizontally divergent feet.
Length of the three joints, a 0.02, b 0.08, c 0.01; breadth, a 0.02, b 0.08, c 0.1.
Remarks on original description: Haeckel listed Clathrocyclas semeles under the subgeneric name Clathrocycloma, but did not include the subgeneric name in the species name.
Description: "two preceding species" refers to C. alcmenae and C. europa in Haeckel, 1887a.
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N age group"
Plot of occurrence data:
Clathrocyclas semeles compiled by the radiolaria@mikrotax project team viewed: 24-9-2023
Short stables page link: https://mikrotax.org/radiolaria/index.php?id=203617 Go to Archive.is to create a permanent copy of this page - citation notes