TaxonConcept: Globorotalia menardii 'A' Bolli 1970 from: Bolli, H.M.Saunders, J.B. (1985): Oligocene to Holocene low latitude planktic foraminifers. In: Plankton Stratigraphy Eds: Bolli, H.M.Saunders, J.B. p. 155-262

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Globorotalia menardii 'A' Bolli 1970 from: Bolli, H.M.Saunders, J.B. (1985): Oligocene to Holocene low latitude planktic foraminifers. In: Plankton Stratigraphy Eds: Bolli, H.M.Saunders, J.B. p. 155-262

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Forma Globorotalia menardii 'A' Bolli 1970

Discussion / Comments:

Bolli & Saunders (1985):
The Middle Miocene Globorotalia menardii (here termed G. (menardii 'A' introduced by Bolli (1970)) differs from G. praemenardii in a more strongly developed peripheral keel, in possessing on the spiral side limbate intercameral sutures, which are non limbate in G. praemenardii, and in displaying in the last whorl 6 against only 5 chambers. Furthermore, individual chambers of G. menardii 'A' are slightly less inflated on the spiral side and the test in equatorial view slightly less lobate, compared with G. praemenardii. The Middle Miocene G. menardii display considerable variability as is shown, for example, by Bolli (1957)

Synonym list:

Bolli & Saunders (1985):

1970 Globorotalia menardii 'A' Bolli. - Bolli : p.582 pl.5, figs.1-4

1985 Globorotalia menardii 'A' Bolli. - Bolli & Saunders : p.228 figs. 34.1; 6,10,12

References:

Bolli,H.M. (1970):
foraminifera of Sites 23-31, Leg 4 . Initial Rep. Deep Sea drill. Proj. Vol. 4 p. 577-643

Bolli,H.M. and Saunders,J.B. (1985):
Oligocene to Holocene low latitude planktic foraminifers.
In: Plankton Stratigraphy Eds: Bolli, H.M.Saunders, J.B. p. 155-262

Anonymous: Unedited TaxonConcept data

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