Lilliputianella longorii Banner & Desai 1988 from: Banner, F.T.Desai, D. (1988): A review and revision of the Jurassic-Early Cretaceous Globigerinina, with special reference to the Aptian assemblages of Speeton (North Yorkshire, England) . J. micropalaeontol. Vol. 7(2) p. 143-185 | . |
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Species Lilliputianella longorii Banner & Desai 1988 |
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| Diagnosis / Definition: |
Banner & Desai (1988):
The test is a low trochospire with five to six chambers in the last whorl. The last two or three chambers increase rapidly in height to become l 1/2 to twice as high as broad in umbilical view, and ovoid in form, being bluntly rounded or pointed conical at their distal ends. The greatest breadth of each chamber is at the distal end of each intercameral suture. On the umbilical side, the intercameral sutures are straight but are slightly oblique to the test radius, especially between the earlier chambers. The umbilicus is deep but narrow, in breadth being about 10% to 12% of the maximum test diameter. The umbilical-extraumbilical aperture is a low slit, furnished with a narrow porticus; relict apertures and portici are visible within the umbilicus for the latter half of the final whorl. The surface of the test is smooth except occasionally for irregular, scattered, rounded, blunt pustules around the umbilical margin; the surface is penetrated by scattered perforations of 0.4 to 0.8;u.m (mostly about 0.6µm) diameter, distributed irregularly over the test surface. |
| Discussion / Comments: |
Boudagher-Fadel et al. (1997):
Remarks: This species has five to six chambers
in the last whorl; the early periphery is rounded
but the last two or three chambers increase rapidly
in height to become one and a half to twice as
high as long in umbilical view, and ovoid in form,
being bluntly rounded or conical at their distal
ends. The umbilicus is deep but narrow, in breadth
being about 10-12% of the maximum test diameter.
The aperture is in an umbilical-extraumbilical
slit, furnished with a narrow porticus. |
| Systematics: |
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Superfamilia Globigerinaceae
Familia Praehedbergellidae
Subfamilia Praehedbergellinae
Genus Lilliputianella
Species Lilliputianella longorii
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| Synonym list: |
Banner & Desai (1988):
Boudagher-Fadel et al. (1997):
1993 Lilliputianella eocretacea Neagu. - Banner et al. : p.15 pl. 6, fig. 8;
pl. 8, fig. 7a-c (non Clavihedbergella eocretacea Neagu, 1975)
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| Was used in synonym list of: |
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| References: |
Banner,F.T. and Desai,D. (1988):
A review and revision of the Jurassic-Early Cretaceous Globigerinina, with special reference to the Aptian assemblages of Speeton (North Yorkshire, England) . J. micropalaeontol. Vol. 7(2) p. 143-185
Banner,F.T.; Copestake,P.. and White,M.R.. (1993):
Barremian-Aptian Praehedbergellidae of the North Sea area: a reconnaissance . Bulletin of The Natural History Museum, London (Geology) Vol. 49 p. 1-30
Coccioni,R. and Premoli Silva,I. (1994):
Planktonic foraminifera from the Lower Cretaceous of Rio Argos sections (southern Spain) and biostratigraphic implications . Cretaceous Research Vol. 15 p. 645–687
Boudagher-Fadel,M.K.; Banner,F.T.; Whittaker,J.E. and Simmons,M.D. (1997):
Early Evolutionary History of Planktonic Foraminifera. Vol. 1
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