Chiloguembelinidae Small biserial test, often with a slightly twisted coiling axis. Intercameral sutures distinct, depressed, and often somewhat oblique. Aperture arched, rimmed by narrow lip, and generally infolded on one side of ultimate chamber.
Guembelitriidae Tests triserial, trochospiral, or nearly triserial in initial whorl becoming biserial. Chambers usually globular or subglobular, increasing gradually in size. Aperture usually a loop-shaped arch, often slightly infolded on one side, marked by a fine lip.
Heterohelicidae Test biserial, may become multiple or uniserial; chambers, globular to ovoid in shape; wall smooth or with parallel ridges; aperture, a low, symmetrical arch, usually at base of last chamber, may have accessory sutural apertures.
Superfamily Guembelitrioidea includes three families that occur in the Oligocene, the biserial Chiloguembelinidae, the enrolled-biserial Cassigerinellidae, and the triserial Guembelitriidae. The superfamily level classification in this work follows the wall texture observations of Chapter 15 (this volume). This superfamily is characterized by the ototara-type wall which is microgranular, microperforate, bilamellar, smooth to finely pustulose or costate, and may have pore mounds on the test surface. All Paleogene Guembelitrioidea are thought to be descended from Guembelitriacretacea which was one of the few taxa to survive the Cretaceous / Paleogene mass extinction.[Fucek et al. 2018 Chiloguembelina]
The discovery by D’Haenens and others (2012) of endospikes in Chiloguembelina, virtually identical to those described in Cassigerinella by Pearson and Wade (2009), is good evidence that the two genera belong to the same phylogenetic group, and that the wall texture of Cassigerinella is a subtype of the ototara-type wall. The ototara-type wall helps define a distinct higher taxonomic group. For that reason we assign the Cassigerinellidae to Superfamily Guembelitrioidea. [Pearson et al. 2018 Cassigerinella]
Distinguishing features: Parent taxon (pf_cenozoic): This is a polyphyletic grouping including all Cenozoic planktonic foraminifera This taxon: Biserial, enrolled biserial and triserial taxa. Wall microperforate.
NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus. They are being edited as the site is developed and comments on them are especially welcome.
Description
Biogeography and Palaeobiology
Biostratigraphic distribution
Geological Range: Last occurrence (top): at top of M13 zone (100% up, 6.1Ma, in Messinian stage). Data source: Total of ranges of the species in this database First occurrence (base): within G. elevata zone (79.33-83.65Ma, base in Campanian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Neptune data: this is a higher taxon page so Neptune data is not plotted. For the customisable plot option go to a genus page Parent: pf_cenozoic
Primary source for this page: Premec Fucek et al 2018 - Oligocene Atlas php 17 p.189
References:
D'Haenens, S., Bornemann, A., Roose, K., Claeys, P. & Speijer, R. (2012). Stable isotope paleoecology (δ13C and δ18O) of early Eocene Zeauvigerina aegyptiaca from the North Atlantic (DSDP Site 401): , v. 1005, p. 179-188. Austrian Journal of Earth Sciences. 1005: 179-188. gs
Montanaro Gallitelli, E. (1957). A revision of the foraminiferal family Heterohelicidae. In: Studies in foraminifera; Part 1 - Planktonic foraminifera. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin . 215: 133-154. gs
Pearson, P. N. & Wade, B. S. (2009). Taxonomy and stable isotope paleoecology of well-preserved planktonic foraminifera from the uppermost Oligocene of Trinidad. Journal of Foraminiferal Research. 39: 191-217. gs
Pearson, P. N., Spezzaferri, S., Huber, B. T. & Kučera, M. (2018b). Taxonomy, biostratigraphy, and phylogeny of Oligocene Cassigerinella. 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 18): 481-494. gs
Premec Fucek, V., Hernitz Kucenjak, M. & Huber, B. T. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Chiloguembelina and Jenkinsina. 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 17): 459-480. gs
Guembelitrioidea compiled by the pforams@mikrotax project teamviewed: 10-12-2024
