Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
Quiltyella clavacella Like nazcaensis but chambers shorter and without inflated ends | ||||
Quiltyella nazcaensis Chambers strongly elongated, ending with spherical termination. | ||||
Quiltyella sp. |
Catalog entries:
Distinguishing features:
Parent taxon (Globigerinidae): Wall spinose, usually with 3½-6 globular chambers in final whorl, trochospiral or planispiral
This taxon: Like Globigerinella but adult chambers radially elongate. (Oligocene - Mid Miocene)
Emended description:
Morphology:
Wall type:
Size:
Geographic distribution: Highly restricted in some levels from the Paratethys and the Pacific Ocean. [Spezzaferri et al. 2018]
Isotope paleobiology: Although no data are available on the species belonging to this genus, Coxall and others (2007) based on isotopic evidence, suggested that digitate morphologies are typical of deep, subthermocline (>150 m) habitat, characterized by lower temperatures, reduced oxygen content, and enrichment of dissolved inorganic carbon.[Spezzaferri et al. 2018]
Phylogenetic relations: We tentatively propose that the genus evolved from Globigerinella roeglina n. sp. in mid-Oligocene Zone O4. However, it is possible that species of Quiltyella, like many other clavate/digitate forms discussed here, represent independent derivations from a globigerinellid form close to G. obesa. [Spezzaferri et al. 2018]
Most likely ancestor: Globigerinella - at confidence level 2 (out of 5). Data source: Spezzaferri et al. 2018, p208.
Geological Range:
Notes: The stratigraphic range of Quiltyella is uncertain because its occurrence is extremely sporadic. Based on the limited data we suggest it ranges from the lower Oligocene Zone O4 to somewhere in the lower or middle Miocene (Quilty, 1976).
Last occurrence (top): near top of Burdigalian Stage (91% up, 16.4Ma, in Burdigalian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Rupelian Stage (81% up, 29.2Ma, in Rupelian stage). Data source: Total of range of species in this database
Plot of occurrence data:
Primary source for this page: Spezzaferri et al. 2018 - Olig Atlas chap.6 p.206
Coxall, H. K. & Pearson, P. N. (2006). Taxonomy, biostratigraphy, and phylogeny of the Hantkeninidae (Clavigerinella, Hantkenina and Cribrohantkenina). In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 41(Chap 8): 213-256. gs V O Coxall, H. K., Wilson, P. A., Pearson, P. N. & Sexton, P. F. (2007). Iterative evolution of digitate planktonic foraminifera. Paleobiology. 33: 495-516. gs Hemleben, C. & Olsson, R. K. (2006). Wall textures of Eocene planktonic foraminifera. In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 41(Chap 4): 47-66. gs V O Hemleben, C., Spindler, M. & Anderson, O. (1989). Modern Planktonic Foraminifera. Springer-Verlag, New York. -. gs Quilty, P. G. (1976). Planktonic foraminifera DSDP Leg 34, Nazca Plate. Initial Reports of the Deep Sea Drilling Project. 34: 629-703. gs V O Spezzaferri, S., Coxall, H. K., Olsson, R. K. & Hemleben, C. (2018a). Taxonomy, biostratigraphy, and phylogeny of Oligocene Globigerina, Globigerinella, and Quiltyella n. gen. In, Wade, B. S., Olsson, R. K., Pearson, P. N., Huber, B. T. & Berggren, W. A. (eds) Atlas of Oligocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 46(Chap 6): 179-214. gs V OReferences:
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Quiltyella compiled by the pforams@mikrotax project team viewed: 20-5-2022
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