Antarctissa


Classification: rads_cenozoic -> Plagiacanthidae -> Lophophaenidae -> Antarctissa
Sister taxa: Amphiplecta, Antarctissa, Arachnocalpis, Arachnocorallium, Arachnocorys, Archiperidium, Archipilium, Ceratocyrtis, Cryptogyrus, Dictyocephalus, Dictyocryphalus, Entepipedus, Gondwanaria, Lipmanella, Lithocampana, Lithomelissa, Lophophaena, Marimoum, Mitrocalpis, Periarachnium, Peromelissa, Phormacantha, P. inc sed castanoides, Plectacantha, Pseudocubus, Pseudodictyophimus, Pteroscenium, Steganocubus, Tripodocyrtis, Trisulcus
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Antarctissa ballista

neptune records:

Antarctissa capitata

neptune records: 1

Antarctissa clausa

neptune records: 1

Antarctissa cylindrica

neptune records: 266

Antarctissa deflandrei

neptune records: 222

Antarctissa denticulata

neptune records: 464

Antarctissa evanida

neptune records:

Antarctissa longa

neptune records: 169

Antarctissa praevema

neptune records: 89

Antarctissa robusta

neptune records: 183

Antarctissa strelkovi

neptune records: 293

Antarctissa whitei

neptune records: 52

Antarctissa sp.

neptune records: 34

Taxonomy

Citation: Antarctissa Petrushevskaya 1967
Rank: genus
Basionym: Antarctissa

Catalog entries: Antarctissa

Original description: Robust two-segmented shell. First segment (cephalis) somewhat smaller than the second (thorax). Lower part of first segment included within the second segment due to the thickness of the second segment wall (bulging part ?). Thorax gradually widening and closed in adult specimens. External differentiation of both segments difficult to observe. Shell walls perforated by numerous rounded pores, shell surface rough with numerous additional spines or horns. Internal skeleton composed of the usual bars, typical of Nassellaria (MB, A, Vert, D, Lr, Ll, Ax). All bars well-differentiated and relativement thick. A and Vert produce cephalic horns that are not clearly distinguished from secundary spines or horns. D, Lr and Ll are linked to the thoracic wall at internally invaginated areas, giving thus a trilobated shape to the thorax. Lr and Ll are symmetrically distributed on both sides of MB, not at all as in Lithomelissa. Axobate very long and rough.
Translated description: In Russian. Translated by J.P.C.]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Aquitanian Stage (0% up, 23Ma, in Aquitanian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Petrushevskaya, M. G. (1967). Radiolayarii otryadov Spumellaria i Nassellaria Antarkicheskoi oblasti (po materialam Sovetskoi Antarkitcheskikh Ekspeditsii). Issledovanie Faunyi Morey (Akademii Nauk SSSR) Leningrad. 4(12): 5-186. gs


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Antarctissa compiled by the radiolaria@mikrotax project team viewed: 19-4-2021

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203138 Go to Archive.is to create a permanent copy of this page - citation notes



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