radiolaria - rads_cenozoic - Carpocanistrum brevispina radiolaria - rads_cenozoic - Carpocanistrum brevispina

Carpocanistrum brevispina


Classification: rads_cenozoic -> Carpocaniidae -> Carpocanistrum -> Carpocanistrum brevispina
Sister taxa: C. acephalum, C. acutidentatum, C. brevispina, C. coronatum, C. favosum, C. flosculum, C. odysseus, C. pulchrum, C. sp.

Taxonomy

Citation: Carpocanistrum brevispina Vinassa de Regny 1900
taxonomic rank: species
Basionym: Carpocanistrum brevispina
Synonyms:
1900 ? Carpocanistrum brevispina - Vinassa de Regny p.579; pl.2, fig.23
1972 Carpocanistrum sp aff. Sethocorys odysseus - Petrushevskaya and Kozlova pl. 22, fig. 16
1975 Cystophormis brevispina group - Petrushevskaya p.588; pl.13, fig.3-7; pl.44, fig.1-2
1989 Cystophormis brevispina? - Lazarus and Pallant p.363; pl.5, fig.14-15
Taxonomic discussion: Vinassa de Regny 1900 pl.2 fig.23

Catalog entries: Carpocanistrum brevispina

Description


Published descriptions


Petrushevskaya 1975 - Carpocanistrum brevispina

Peristome rather long and usually with furrows. About 9-11 longitudinal rows of the pores on a half of the equator. There are two forms: one typical, very regular (odysseus form), and the other less regular (form A). Oligocene-Miocene.


Lazarus and Pallant 1989 - Carpocanistrum brevispina

 

Description: Cephalis strongly compressed, cap partially embedded in thorax, with a few small circular pores. Thorax not flared, centally inflated, with medium circular pores arranged in staggered vertical rows. Bars medium to wide, of moderate thickness. Some specimens have ver­tical ribs between pore rows. Thorax terminated by circular opening at base of thorax approximately same diameter as cephalis, surrounded by a hyaline peristome. Outline of shell is smooth. The photographs in Pe­trushevskaya (1975) are too blurred to permit definite comparisons.

Occurrence: In Sections 105-647A-14, CC and -13, CC (early Miocene).


Biogeography and Palaeobiology

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:

Lazarus, D & Pallant, A (1989). Oligocene and Neogene Radiolarians from the Labrador Sea, ODP Leg 1051. Proceedings of the Ocean Drilling Program, Scientific Results. 105: 349-380. gs

Petrushevskaya, M. G. & Kozlova, G. E. (1972). Radiolaria: Leg 14, Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 14: 459-648. gs O

Petrushevskaya, M. G. (1975a). Cenozoic radiolarians of the Antarctic, Leg 29, DSDP. Initial Reports of the Deep Sea Drilling Project. 29: 541-675. gs O

Vinassa de Regny, P. E. (1900a). Radiolaria Miocenici Italiani. Memorie della Reale Accademia della scienze dell'Istituto di Bologna. 5(8): 565-595. gs O

Missing or ambiguous references: ;


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Carpocanistrum brevispina compiled by the radiolaria@mikrotax project team viewed: 20-5-2024

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