Gondwanaria


Classification: rads_cenozoic -> Plagiacanthidae -> Lophophaenidae -> Gondwanaria
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
Gondwanaria campanulaeformis

neptune records:

Gondwanaria deflandrei

neptune records: 42

Gondwanaria dogieli

neptune records: 38

Gondwanaria hister

neptune records: 8

Gondwanaria japonica

neptune records: 47

Gondwanaria reshetnjakae

neptune records:

Gondwanaria sp.

neptune records: 65

Taxonomy

Citation: Gondwanaria Petrushevskaya 1975
Rank: genus
Basionym: Gondwanaria
Type species: Sethoconus? dogieli Petrushevskaya 1967
Synonyms: Lipmanella Loeblich and Tappan 1961
Taxonomic discussion: Differs from Pteropilium by the cephalis being "with the neck type". It seems probable that Gondwanaria is connected with the Cretaceous and Paleogene species of Lithomelissa (?) amazon Foreman, 1968, group (Petrushevskaya and Kozlova, 1972, pl. 37). If so, this genus may be regarded as Plagiacanthoidea. The similarity of some Gondwanaria species and the earliest Clathrocorona (typical Setoperid) is also great (Plate 9, Figures 1-6). The difference is mainly in the thoracic gates present in the most of Clathrocorona species.

Catalog entries: Gondwanaria

Original description: Cephalis is globe-shaped, settled on the ""neck"" (Figure 10 I). Thorax cupola-shaped, The upper walls of the thorax may have three ribs formed by the spines D, Lr and Ll. There are no real ""sethoperid"" plates connecting these three spines with the apical horn. Abdomen may be more or less developed (and divided from the thorax). Pores irregular or in longitudinal rows.

Description


Morphology: Cephalis is globe-shaped, settled on the "neck" (Figure 10 I). Thorax cupola-shaped, The upper walls of the thorax may have three ribs formed by the spines D, Lr and Ll. There are no real "sethoperid" plates connecting these three spines with the apical horn. Abdomen may be more or less developed (and divided from the thorax). Pores irregular or in longitudinal rows. Note on synonymy to Lipmanella - L. published before? G. so should have priority-dbl 22.820

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 Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

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


logo

Gondwanaria compiled by the radiolaria@mikrotax project team viewed: 23-4-2021

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/radiolaria/index.php?id=204196 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics