From Suzuki Paleotax db:
1971 Psychospyris parva n. sp. Riedel & Sanfilippo p. 1591-1592, pl. 5, figs. 8-10
1977 Psychospyris parva Riedel & Sanfilippo Riedel & Sanfilippo pl. 15, fig. 15
Catalog entries: Psychospyris parva
Original description: Bilobed cephalis of the usual acanthodesmiid form, its outline marked by an almost complete frontal ring. Anterior and posterior faces of this cephalic shell very delicate, with small subcircular pores. In the frontal plane, surrounding the cephalic shell, is a more robustly developed zone of chambered structure, which may be kidney-shaped, elliptical or circular in outline. The cephalic cavity is generally about a third to a half as wide as the total width of the skeleton.
Geological Range:
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:
![]() |
Psychospyris parva compiled by the radiolaria@mikrotax project team viewed: 7-9-2026
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205208 Go to Archive.is to create a permanent copy of this page - citation notes |