From Suzuki Paleotax db:
1992 Dictyocephalus middouri n. sp. Nishimura p. 336, 338, pl. 9, figs. 10-12
2002 Dictyocephalus middouri Nishimura Liu & Aitchison p. 148, pl. 2, figs. 16, 17
Catalog entries: Dictyocephalus middouri
Original description: Shell of four or more segments, the first three segments conical; first segment hemispherical, porous, with cylindrical apical horn. Collar stricture with four collar pores internally, moderately expressed externally. Cephalic structure has A, V, two L, and D; V rises obliquely upwards. Two l included in septal ring. Second and third segments with subcircular pores similar in size and arrangement. Three cylindrical ribs from the junction of first and second segments extend as solid lateral wings. Fourth or subsequent segments subcylindrical with pores that are quite irregular in size and arrangement and distal margin ragged.
Geological Range:
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P age group"
Plot of occurrence data:
Nishimura, A. (1992). Paleocene radiolarian biostratigraphy in the northeast Atlantic at Site 384, Leg 43, of the Deep Sea Drilling Project. Micropaleontology. 38(4): 317-362. gsReferences:

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Dictyocephalus middouri compiled by the radiolaria@mikrotax project team viewed: 6-10-2026
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