Catalog - Streptochilus latum

CATALOG OF ORIGINAL DESCRIPTIONS: Streptochilus latum Brönnimann & Resig 1971

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: pf_cat -> S -> Streptochilus -> Streptochilus latum
Other pages this level: S. cetacensis, S. dubeyi, S. globiger infirmirugosus, S. inglei, S. latum, S. macdougallae, S. mascarenensis, S. pristinum, S. rockallkiddensis, S. subglobigerum, S. tasmanensis, S. tokelauae flexiserialis

Streptochilus latum

Citation: Streptochilus latum Brönnimann & Resig 1971
Rank: species
Type specimens: MO 688751
Type age (chronostrat): Age of holotype is late Miocene (Zone N. 17); geologic range of species is late Miocene mid-Zone N. 16 to mid-Zone N. 17.
Type locality: Location of holotype is DSDP Hole 62.1 on the Eauripik Rise (1° 52.2'N, 141° 56'E, 2591 meters),from a core depth of about 187 meters. Additional specimens of this species were noted in a spot sample from Zone N. 17 of the Ontong Java Plateau (DSDP Hole 64.0, Core 3).
Type repository: Washington; USNM

Linked specimens: USNM-688751

Current identification/main database link: Streptochilus latum Bronniman & Resig 1971

Original Description

Test biserial, increasing rapidly in breadth; chambers semi-inflated, wider than high, with sutures sloping towards the periphery and flexed shallowly toward the mid-line of the later chambers; aperture a high arch from the base of the last septal face, offset to one side of the test with a collar at the outer margin and the opposite margin inturned to form a connection to the collar of the penultimate aperture; wall smooth,porous.

Length of holotype 242 microns, maximum breadth of holotype 137 microns; range of length of the species is 100-244 microns, maximum breadth is 150 microns.


Extra details from original publication
This species is distinguished from other members of the genus by its rapidly expanding test.

Editors' Notes
Orthography: Streptochilus is a neuter noun (Smart & Thomas 2018, p.501) so the correct form of the species name is latum, as per the original description, although it has sometimes been given as latus.


Brönnimann, P. & Resig, J. (1971). A Neogene globigerinacean biochronologic time-scale of the southwestern Pacific. Initial Reports of the Deep Sea Drilling Project. 7(2): 1235-1469. gs V O

Smart, C. W. & Thomas, E. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Streptochilus. 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 19): 495-511. gs V O


Streptochilus latum compiled by the pforams@mikrotax project team viewed: 30-11-2022

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