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Species Globorotalia (Turborotalia) pseudokugleri Blow 1969 | ||||||
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| Diagnosis / Definition: | ||||||
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Blow (1969): Note: The holotype of Globorotalia (T.) Pseudokugleri, n.sp. is that specimen figured by BOLLI, 1957 [51, On pl. 28, figures 7a c (U.S.N.M. registered number P.5665) and the description and diagnosis given here results from the writers re examination of the specimen in the United States National Museum. See also Pl. 39, figures 5, 6, for figured paratype. Description of holotype: Test small with 15 16 chambers arranged in a low trochospire and with 7 chambers in the final whorl. Chambers inflated both dorsally and ventrally, test very nearly equally biconvex but with a smoothly rounded, broad, not sub acute, peripheral margin. Chambers, as seen in dorsal aspect, nearly equally dimensional, subglobular and with nearly radial dorsal intercameral sutures. Spiral and dorsal intercameral sutures, depressed incised and distinct. Umbilicus, open and deep but not a sharply defined pit as in G. (T.) kugleri. Umbilical ventral shoulders of the chambers do not dip sharply into the umbilicus but are smoothly and gently rounded into the umbilical depression. Ventral intercameral sutures are radial, moderately incised but distinct. Aperture, a low but long slit like opening with a distinct lip, interiomarginal, umbilical extraumbilical. Wall calcareous, perforate but without distinct pore pits, not strongly pustulose and quite smooth over the later parts of the test. Maximum diameter of holotype 0.31 mm. |
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| Discussion / Comments: | ||||||
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Blow (1969): Remarks: The figured paratype shows that G. (T.) Pseudokugleri has a densely and a comparatively coarsely perforate wall structure but without distinct pore pits. Some pustules occur over the earlier parts of the test but these are much less strongly developed than in G. (T.) mendacis. G. (T.) Pseudokugleri differs from both G. (T.) mendacis and G. (T.) kugleri in having radial dorsal intercameral sutures with subglobular, inflated chambers as seen in dorsal aspect. G. (T.) Pseudokugleri differs from G. (T.) mendacis in having a wider umbilical depression and a broad, completely rounded not subacute peripheral margin. G. (T.) Pseudokugleri differs from G. (T.) kugleri in not having a flat dorsal surface to the test but in having inflated, subglobular chambers with radial dorsal intercameral sutures. Stratigraphical Range: Ranges from within Zone N.3 (= P.22) (?middle part) to within the middle part of Zone N.4. The holotype comes from sample KWB.8672, type locality of the Globorotalia kugleri zone sensu BOLLI, 1957, Cipero formation, southern Trinidad. The figured paratype comes from a sample collected from the cotype locality of the G. kugleri zone (sensu BOLLI), Mosquito Creek, opposite milepost 38, Cipero formation, southern Trinidad; Zone N.4 emended. |
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| Synonym list: | ||||||
| Blow (1969): 1957 Globorotalia cf. kugleri Bolli. - Bolli : pl. 28, figs. 7a-c not Globorotalia kugleri BOLLI, 1957, p. 118, pl. 28, figs. 5a-6.
1969 Globorotalia (Turborotalia) pseudokugleri Blow. - Blow : p.391 pl. 10, figs. 4-6; pl. 39, figs. 5,6
Quilty (1976): 1969 Globorotalia (Turborotalia) pseudokugleri Blow. - Blow : p.391 pl. 10 figs. 4-6
1976 Globorotalia (Turborotalia) pseudokugleri Blow. - Quilty : p.691 pl. 13, figs. 16-17
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| Was used in synonym list of: | ||||||
| References: | ||||||
Bolli,H.M. (1957): Blow,W.H. (1969): Quilty,P.G.. (1976): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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