radiolaria - rads_cenozoic - Theocyrtis annosa radiolaria - rads_cenozoic - Theocyrtis annosa

Theocyrtis annosa


Classification: rads_cenozoic -> Pterocorythidae -> Theocyrtis -> Theocyrtis annosa
Sister taxa: T. annosa, T. careotuberosa, T. diabloensis, T. litos, T. perpumila, T. perysinos, T. robusta, T. setanios, T. tuberosa, T. sp.

Taxonomy

Citation: Theocyrtis annosa (Riedel 1959)
taxonomic rank: species
Basionym: Phormocyrtis annosa Riedel 1959
Synonyms:

From Suzuki Paleotax db:

1959 Phormocyrtis annosa n. sp. Riedel p. 294, pl. 2, fig. 7
1970 Theocyrtis annosa (Riedel) Riedel & Sanfilippo p. 535, pl. 15, fig. 9
1971 Theocyrtis annosa (Riedel) Kling p. 1088, pl. 5, figs. 1, 2
1971 Theocyrtis annosa (Riedel) Moore p. 743, pl. 7, figs. 6, 7
1971 Theocyrtis annosa (Riedel) Riedel & Sanfilippo p. 1598, pl. 2h, fig. 4, pl. 3d, figs. 12, 13
1972 Calocycletta annosa (Riedel) Petrushevskaya & Kozlova p. 544
1972 Theocyrtis annosa (Riedel) Goll p. 958, pl. 17, fig. 1, pl. 18, figs. 1, 2
1972 Theocyrtis annosa (Riedel) Johnson & Parker pl. 3, fig. 2
1973 Theocyrtis annosa (Riedel) Dinkelman p. 789, pl. 5, fig. 10
1973 Theocyrtis annosa (Riedel) Sanfilippo et al. p. 226, pl. 6, fig. 12
1974 Theocyrtis annosa (Riedel) Johnson p. 551
1974 Theocyrtis annosa (Riedel) Kruglikova pl. 3, fig. 8
1975 Theocyrtis annosa (Riedel) group Holdsworth p. 532
1975 Theocyrtis annosa (Riedel) Ling p. 731, pl. 13, fig. 6
1977 Theocyrtis annosa (Riedel) Riedel & Sanfilippo pl. 15, fig. 8
1978 Theocyrtis annosa (Riedel) Riedel & Sanfilippo p. 78, pl. 10, fig. 3
1978 Theocyrtis annosa (Riedel) Theyer et al. pl. 2, fig. 15
1982 Theocyrtis annosa (Riedel) Riedel & Sanfilippo pl. 2, fig. 8
1984 Theocyrtis annosa (Riedel) Nigrini & Lombari N171-N172, pl. 30, fig. 5
1985 Theocyrtis annosa (Riedel) Sanfilippo et al. p. 701, figs. 32.2a, 32.2b
1986 Theocyrtis annosa (Riedel) Levyikina p. 74-75, pl. 3, figs. 3, 4
1986 Theocyrtis annosa (Riedel) Riedel & Sanfilippo pl. 7, fig. 9
1992 Theocyrtis annosa (Riedel) Sanfilippo & Riedel pl. 3, fig. 12
1995 Theocyrtis annosa (Riedel) Sanfilippo & Nigrini p. 282-283, pl. 4, figs. 1-4
2006 Theocyrtis annosa (Riedel) Nigrini et al. p. 50, pl. P5, fig. 14
2012 Theocyrtis annosa (Riedel) Kamikuri et al. pl. 2, fig. 2
Taxonomic discussion: (Riedel) 1959; Riedel and Sanfilippo 1970

Catalog entries: Phormocyrtis annosa

Original description: Cephalis elongate, lobate, with a few small pores, surmounted by a stout three-bladed horn. Thorax inflated-campanulate, with regular circular pores. Thoracic wall pronouncedly plicate longitudinally, the plicae being separated by three to five longitudinal rows of pores. Abdomen subcylindrical, with a thinner wall than the thorax, and sub-circular to circular pores usually less regularly arranged than in the thorax. In most specimens the thoracic plicae extend into the abdomen, where they become less distinct. Termination of the abdomen usually ragged, but in some specimens with approximately eight to fifteen parallel, triangular lamellar feet or teeth. This species differs from all others of the genus in having a thick-walled, pronouncedly plicate thorax.

Description

Biogeography and Palaeobiology


Similar species

annosa

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:

References:

Riedel, W. R. & Sanfilippo, A. (1970). Radiolaria, Leg. 4 DSDP. Initial Reports of the Deep Sea Drilling Project. 4: 503-575. gs

Riedel, W. R. (1959a). Oligocene and Lower Miocene Radiolaria in tropical Pacific sediments. Micropaleontology. 5(3): 285-302. gs


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Theocyrtis annosa compiled by the radiolaria@mikrotax project team viewed: 8-9-2024

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