Catalog entries: Archicircus rhombus
Original description: Gate rhombic. Ring rhombic, with four prominent edges and four pairs of short, divergent, pyramidal spines on the four corners, arising from the lateral edges of the four rods, about as long as the radius of the gate.
Remarks on original description: Haeckel listed Archicircus rhombus under the subgeneric name Archistephus, but did not include the subgeneric name in the species name.[comment from RadWorld database]
Last occurrence (top): Extant Data source: Lazarus et al. 2015 - "R age group"
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Lazarus et al. 2015 - "R age group"
Plot of occurrence data:
Tholospyris rhombus compiled by the radiolaria@mikrotax project team viewed: 23-4-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205877 Go to Archive.is to create a permanent copy of this page - citation notes