- Type images:
type image: T. tripodiscus
Catalog entries: Tholospyris tripodiscus
type image: T. tripodiscusOriginal description: Shell campanulate, smooth, as broad as long, with deep sagittal stricture. Cephalis compressed, with irregular roundish pores; two or three pairs of larger annular pores on each side of the ring. Basal plate with four large pores. Galea with two very large opposite holes (an occipital and a frontal opening). A slender free perpendicular columella connects the uppermost part of the sagittal ring with the strong three-sided pyramidal apical horn. All three feet of equal length, half as long as the ring, three-sided, prismatic, divergent, with three dentated edges.
Remarks on original description: Haeckel listed Tholospyris tripodiscus under the subgeneric name Tholospyrium, but did not include the subgeneric name in the species name.[comment from RadWorld database]
Geological Range:
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:
References:
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Tholospyris tripodiscus compiled by the radiolaria@mikrotax project team viewed: 23-4-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205880 Go to Archive.is to create a permanent copy of this page - citation notes |