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Conoglobigerina avariformis Kasimova 1984 from: Boudagher-Fadel, M.K.Banner, F.T.Whittaker, J.E.Simmons, M.D. (1997): Early Evolutionary History of Planktonic Foraminifera. Vol. 1
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Anonymous: Unedited TaxonConcept data
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Species Conoglobigerina avariformis Kasimova 1984


Discussion / Comments:
Boudagher-Fadel et al. (1997):
Remarks: Kasimova figured the holotype of the species as possessing five chambers initially, reducing to four chambers in the penultimate whorl and then to three in the final whorl. The metatype illustrated by us (Plate 2.7, Figs 8-10) may be an immature specimen, with only four chambers in its last whorl. The umbilicaI views drawn by Kasimova depict an umbilical covering, in each of the four cases illustrated, which might be a bulla; our metatype (Plate 2.7, Fig. 10) may also have a bulla. The true chambers of the species are very depressed and the intercameral sutural depressions at the periphery are very broad. The pseudomuricae of the surface may fuse into very short, discontinuous ridges (Plate 2.8, Fig. 2). These features are also found on C. dagestanica; they are the stratigraphically earliest examples known to us of pseudomurical ridges.C. avariformis is close to C. dagestanica but possesses much more depressed chambers, less depressed, more oblique intercameral sutures, and a more compact test.
Systematics:

22
 Familia Globotruncanidae
  Subfamilia Hedbergellinae
   Species Conoglobigerina avariformis
Synonym list:
Boudagher-Fadel et al. (1997):
1984 Conoglobigerina avariformis Kasimova. - Kasimova & Aliyeva : p.2 pl. 1; fig. 1a-c, 2-4
1997 Conoglobigerina avariformis Kasimova. - Boudagher-Fadel et al. : 45, 47 pl. 2.7, fig. 8-10; pl. 2.8, fig. 2; Figure: 2.2
References:

Kasimova,G.K.. and Aliyeva,D.G.. (1984):
Planktonic Foraminifera of the Middle Jurassic beds of Azerbaijan . Voprosy Paleontologii i Stratigrafii Azerbaijana Vol. 479 p. 8-19

Boudagher-Fadel,M.K.; Banner,F.T.; Whittaker,J.E. and Simmons,M.D. (1997):
Early Evolutionary History of Planktonic Foraminifera. Vol. 1
Anonymous: Unedited TaxonConcept data
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