1993 Amphisphaera aotea - Hollis pl. 1, fig. 1, 2.
From Suzuki Paleotax db:
1993 Amphisphaera aotea n. sp. Hollis p. 316, 318, pl. 1, figs. 1, 2
1997 Amphisphaera aotea Hollis Hollis p. 33, pl. 2, figs. 1-3, 4(?)
2003 Amphisphaera aotea Hollis Ding figs. 4.1, 4.2
Catalog entries: Amphisphaera aotea
Original description: Small, subspherical outer shell with large circular pores set in hexagonal frames. 3-7 short, three-edged spines; 2 major spines at opposite poles, other shorter spines clustered near the poles. Only a single, spherical inner shell seen (average ratio of minor axes = 1:1.5).
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:
Hollis, C. J. (1993). Latest Cretaceous to late Paleocene radiolarian biostratigraphy: A new zonation from the New Zealand region. Marine Micropaleontology. 21: 295-327. gsReferences:
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Amphisphaera aotea compiled by the radiolaria@mikrotax project team viewed: 30-4-2025
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