radiolaria - rads_cenozoic - Cryptocarpium azyx

Cryptocarpium azyx

Classification: rads_cenozoic -> Carpocaniidae -> Cryptocarpium -> Cryptocarpium azyx
Sister taxa: C. azyx, C. ornatum, C. sp.


Citation: Cryptocarpium azyx (Sanfilippo and Riedel 1973)
Rank: species
Basionym: Carpocanistrum azyx Sanfilippo & Riedel 1973

Taxonomic discussion:
(Sanfilippo and Riedel) 1973; Sanfilippo and Riedel 1992

Catalog entries: Carpocanistrum azyx

Original description: Cephalis within upper part of thoracic wall, and its structure consequently obscure - it is not a small sphere, but a large structure (at least distally) of widely separated, narrow bars forming a loose \basket\". Thorax regularly ellipsoidal, with smooth surface, a somewhat constricted peristome, and thick wall perforated by small, closely spaced, circular pores longitudinally aligned. Peristome narrow, probably with an inwardly directed shelf, terminating in small thorns connected by ridges with the bars between distalmost thoracic pores, and perhaps the remnant of a previously existing abdomen.
QDIn Saunders et al., 1985 (p.412) specimens with abdominal lattice are excluded.


Biogeography and Palaeobiology

Similar species: azyx

Biostratigraphic distribution

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:


Sanfilippo, A. & Riedel, W. R. (1973). Cenozoic Radiolaria (exclusive of theoperids, artostrobiids and amphipyndacids) from the Gulf of Mexico, Deep Sea Drilling Project Leg 10. Initial Reports of the Deep Sea Drilling Project. 10: 475-608. gs

Sanfilippo, A. & Riedel, W. R. (1992). The origin and evolution of Pterocorythidae (Radiolaria): A Cenozoic phylogenetic study. Micropaleontology. 38(1): 1-36. gs


Cryptocarpium azyx compiled by the radiolaria@mikrotax project team viewed: 21-9-2021

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