Catalog entries: Tholospira cervicornis
Original description: Cortical shell covered with numerous (forty to fifty or more) branched radial spines; each spine antler-shaped, about as long as the medullary Larnacilla-shell, with eight to twelve dichotomous branches (similar to Cromyodrymus abietinus, Pl. 30, fig. 6). Perimeter of the lateral plane elliptical, one and a third times as long as broad. Four internal kidney-shaped gates, as in Tetrapyle. Both wings of the sagittal girdle turn round one another in one and a half to two double spiral turns.
Remarks on original description: Haeckel listed Tholospira cervicornis under the subgeneric name Tholospironium, 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:
Tholospira cervicornis compiled by the radiolaria@mikrotax project team viewed: 13-6-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205857 Go to Archive.is to create a permanent copy of this page - citation notes