Taxonomy
Original description: Test small, strongly convex, turret-shaped, consisting of 3 whorls; there are 4-5 highly inflated rounded chambers in the final whorl; these chambers are closely adjacent to one another so that the whole test looks like a disorganized accumulation of spherical chambers. The chambers grow very uniform in size. The sutures are short, slightly curved, almost straight. The umbilical aperture is a large slit in the extraumbilical area. The aperture has a small raised lip. Wall smooth, finely porous. Average dimensions: Diameter 0.15 mm; greatest thickness 0.10 mm.
Entries in the Catalog of original descriptions: Globigerina hoterivica
Distinguishing features:
Parent taxon (Favusella): Test trochospirally coiled, globular chambers rapidly enlarging, four to five in each of the two to three whorls, sutures radial, depressed, umbilicus narrow to wide, periphery broadly rounded, peripheral outline lobulate; wall calcareous, hyaline, optically radial, perforate, without keel or poreless carinal band, surface with a distinct honeycomblike pattern of costellae, few to many tiny pores in each of the rectangular to hexagonal areas, and rare pores on the elevated reticulum; aperture an interiomarginai arch of varied extent, ranging from umbilical to spiroumbilical and bordered by a narrow lip.
This taxon: Aperture high arch, almost circular
Morphology:
Close inspection of the axis of coiling in the Crimean specimens shows that it may change angle from the earlier to the last whorl, with the earlier 2-2.5 whorls being positioned almost sideways from the last whorl.
In this sense, F. hoterivica resembles the mode of coiling of Conoglobigerina gulekhensis (Gorbachik & Poroshina), which warrants more detailed study of these taxa from several localities to determine in more detail to what extent the test morphology of the two taxa overlaps. Among the Crimean specimens several show a looped aperture, as commonly found in Globuligerina oxfordiana (Grigelis). A bulla-like last chamber is common. Wall texture in the Crimean specimens is poorly preserved but reticulate (Gradstein et al., 2018).
Wall type:
Size:
Character matrix
test outline: | Lobate | chamber arrangement: | Trochospiral | edge view: | Inequally biconvex | aperture: | Umbilical |
sp chamber shape: | Inflated | coiling axis: | Moderate | periphery: | N/A | aperture border: | Thick lip |
umb chbr shape: | Inflated | umbilicus: | Narrow | periph margin shape: | Broadly rounded | accessory apertures: | N/A |
spiral sutures: | Moderately depressed | umb depth: | Deep | wall texture: | Cancellate | shell porosity: | Finely Perforate: 1-2.5µm |
umbilical or test sutures: | Moderately depressed | final-whorl chambers: | 4-4.5 | N.B. These characters are used for advanced search. N/A - not applicable |
Most likely ancestor: Globuligerina oxfordiana - at confidence level 5 (out of 5). Data source: .
Geological Range:
Notes: Berriasian through ? Barremian; Favusella hoterivica is widely reported and easily recognized.
Last occurrence (top): within L. cabri zone (119.05-120.55Ma, top in Aptian stage). Data source: [copied from Chronos database]
First occurrence (base): at base of G. hoterivica zone (0% up, 141.9Ma, in Berriasian stage). Data source: zonal marker (from Timescale Creator)
Plot of range and occurrence data:
Butt, A. (1979). Butt, A. (1979). Lower Cretaceous foraminiferal biostratigraphy, paleoecology, and depositional environment at DSDP Site 397, Leg 47A. Initial Reports of the Deep Sea Drilling Project. 47(1): 257-271. Initial Reports of the Deep Sea Drilling Project. 47(1): 257-271. gs Coccioni, R. & Premoli Silva, I. (1994). Coccioni, R. & Premoli Silva, I. (1994). Planktonic foraminifera from the Lower Cretaceous of Rio Argos sections (southern Spain) and biostratigraphic implications. Cretaceous Research. 15: 645-687. Cretaceous Research. 15: 645-687. gs Gradstein, F., Waskowska, A., Kopaevich, L., Watkins, D., Friis, H. & Perez Panera, J. (2018). Gradstein, F., Waskowska, A., Kopaevich, L., Watkins, D., Friis, H. & Perez Panera, J. (2018). Berriasian planktonic foraminifera and calcareous nannofossils from Crimea Mountains, with reference to microfossil evolution. Swiss Journal of Geosciences. 1-24. Swiss Journal of Geosciences. 1-24. gs Lipson-Benitah, S. & Almogi-Labin, A. (2004). Lipson-Benitah, S. & Almogi-Labin, A. (2004). Aptian planktonic foraminifera from Israel. Israel Journal of Earth Sciences. 53(1): 27-46. Israel Journal of Earth Sciences. 53(1): 27-46. gs Subbotina, N. N. (1953). Subbotina, N. N. (1953). Foraminiferes fossiles d'URSS Globigerinidae, Globorotaliidae, Hantkeninidae. Bureau de Recherches Geologiques et Minieres. 2239: 1-144. Bureau de Recherches Geologiques et Minieres. 2239: 1-144. gs Wernli, R., Ascoli, P. & Williams, G. L. (1995). Wernli, R., Ascoli, P. & Williams, G. L. (1995). Favusella hoterivica (Subbotina) from the Berriasian and Valanginian of offshore Eastern Canada. Revue de Paléobiologie. 14(2): 379-398. Revue de Paléobiologie. 14(2): 379-398. gsReferences:
![]() |
Favusella hoterivica compiled by the pforams@mikrotax project team viewed: 12-5-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=110107 Go to Archive.is to create a permanent copy of this page - citation notes |
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Comments (2)
Distinguished from Favusella washitensis by it's higher arched, almost circular aperture.
Thanks - I have used that to add distinguishing features statements