pforams@mikrotax - Hastigerinella digitata

Citation: Hastigerinella digitata (Rhumbler, 1911)

Synonyms:

Hastigerinella rhumbleri Galloway - alternate name proposed by Galloway 1933, see Banner 1965 for discussion.
Hastigerinopsis digitiformans Saito & Thompson in Saito et al. 1976 (alternative name based on argument that Rhumbler's description was invalid, this argument has since been rejected, so the alternative name is superfluous, see Coxall 2003).
Hastigerina parapelagica Saito & Thompson in Saito et al. 1976 [according to Brummer & Kucera 2022 - who interpret H. parapelagica as a growth stage of H. digitata, prior to the development of the branching chambers.

Distinguishing features:
Parent taxon (Hastigerinella): clavate chambers
This taxon: monospecific

Description

Coiling direction (in extant population): n/a

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: present in the plankton (SCOR WG138)
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: estimate - very rare/poorly documented in the fossil record

References:

Banner, F. T. (1965). On Hastigerinella digitata (Rhumbler, 1911). Micropaleontology. 11(1): 114-116. gs

Coxall, H. K. (2003). Hastigerinella Cushman, 1927 and Clavigerinella Bolli, Loeblich & Tappan, 1957 (Rhizopodea, Foraminiferida): proposed conservation of the usage by designation of Hastigerina digitata Rhumbler, 1911 as the type species of Hastigerinella. Bulletin of Zoological Nomenclature. 60: 182-186. gs V O

Rhumbler, L. (1911). Die Foraminiferen (Thalamophoren) der Plankton-Expedition: Teil 1. Die allgemeinen Organisations verhaltnisse der Foraminiferen, Plankton Expedition Humbold-Stiftung, Ergeben 3, L. C 1. . 1-331. gs

Saito, T., Thompson, P. R. & Breger, D. (1976). Skeletal ultra-microstructure of some elongate-chambered planktonic foraminifera and related species. In, Takayanagi, Y. & Saito, T. (eds) Progress in Micropaleontology, Special Publication. Micropaleontology Press, The American Museum of Natural History, New York 278-304. gs

Siccha, M. & Kucera, M. (2017). ForCenS, a curated database of planktonic foraminifera census counts in marine surface sediment samples. Scientific Data. 4(1): 1-12. gs

test outline:	Stellate	chamber arrangement:	Pseudoplanispiral	edge view:	Hourglass	aperture:	Equatorial
sp chamber shape:	Elongate	coiling axis:	Very low	periphery:	N/A	aperture border:	Thin lip
umb chbr shape:	Elongate	umbilicus:	Narrow	periph margin shape:	Moderately rounded	accessory apertures:	None
spiral sutures:	Weakly depressed	umb depth:	Shallow	wall texture:	Smooth	shell porosity:	Finely Perforate: 1-2.5µm
umbilical or test sutures:	Weakly depressed	final-whorl chambers:	5.0-7.0	N.B. These characters are used for advanced search. N/A - not applicable

Hastigerinella digitata

Taxonomy

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

References:

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