CATALOG OF ORIGINAL DESCRIPTIONS: Gondwanaria deflandrei Petrushevskaya 1975

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: rads_cat -> G -> Gondwanaria -> Gondwanaria deflandrei
Other pages this level: G. clarae, G. cylindrica, G. deflandrei, G. dogieli multiporulosa, G. hister, G. japonica kiaeri, G. kiroroensis, G. nigrinae, G. reschetnjakae paleogenica

Gondwanaria deflandrei

Citation: Gondwanaria deflandrei Petrushevskaya 1975
Rank: species
Type specimens: pl.9, figs.8,9
Type repository: Holotype No.62249. Marine Dept., Zoological Institute, Acad. of Sc., St Petersburg, Russia
Described on page(s) : p.584
Family (traditional): Plagiacanthidae
Family (modern): Lophophaenidae

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Current identification/main database link: Gondwanaria deflandrei Petrushevskaya 1975


Original Description
The outline of the skeleton is very similar to G. japonica. The cephalis is with a neck. The thorax subconical, 70-100┬Ám in width and in height. The upper part of the abdomen is slightly wider than the thorax. The two segments are separated by the inner ring. Distinguishing characters (rw): More pores on half of the equator of the thorax than in G. japonica (15-20), the main difference between the two species. The species differs from Dictyoceras xiphephorum in having cephalis with a neck. It differs from the specimens illustrated by Petrushevskaya and Kozlova, 1972, pl. 37, fig. 13, 14 by a more defined shell outline and an obligate ring between thorax and abdomen.

Etymology: The species is named after George Deflandre.

Editors' Notes
In DSDP Leg 29 samples it occurs in early Miocene, but specimens of that group may be found in Quaternary deposits both in the Antarctic and in the North Atlantic.

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


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Gondwanaria deflandrei compiled by the radiolaria@mikrotax project team viewed: 1-3-2021

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