Catalog - Streptochilus

Catalog - Streptochilus <title>Catalog - Streptochilus

CATALOG OF ORIGINAL DESCRIPTIONS: Streptochilus Bronniman & 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

Other pages this level: Schackoina, Schackoinella, Shastrina, Siderolina, Sigalia, Sigalitruncana, Sphaeroidina, Sphaeroidinella, Sphaeroidinellinae, Sphaeroidinellopsis, Spiroplecta, Steineckia, Streptochilus, Subbotina

			Streptochilus cetacensis Smart and Thomas (2007) = Streptochilus cetacense
			Streptochilus dubeyi Petters 1983
			Streptochilus globiger subsp. infirmirugosus Fordham 1986
			Streptochilus inglei Miranda-Martínez et al. 2017 = Streptochilus inglei
			Streptochilus latum Brönnimann & Resig 1971 = Streptochilus latum
			Streptochilus macdougallae Miranda-Martínez and Carreño 2017, in Miranda-Martínez et al. 2017 = Streptochilus macdougallae
			Streptochilus mascarenensis Smart and Thomas (2007) = Streptochilus mascarenense
			Streptochilus pristinum Brönnimann & Resig 1971 = Streptochilus pristinum
			Streptochilus rockallkiddensis Smart and Thomas (2007) = Streptochilus rockallkiddense
			Streptochilus subglobigerum Resig 1989 = Streptochilus subglobigerum
			Streptochilus tasmanensis Smart & Thomas 2018 = Streptochilus tasmanense
			Stretptochilus tokelauae subsp. flexiserialis Fordham 1986

Streptochilus

Citation: Streptochilus Bronniman & Resig 1971

Rank: Genus

Type species: Bolivina tokelauae Boersma

Current identification/main database link: Streptochilus Bronnimann and Resig, 1971

Original Description

Test biserial, sometimes twisted; wall calcareous per- forate; aperture a high arch, eccentric in position, extending from the base of the last chamber onto the apertural face. On the outside margin, a collar borders the aperture. Near the base of the inside margin, the collar and apertural edge are turned inward, producing a plate-like connection with the proximal margin of the collar of the previous aperture. The length of the test varies between 75 and 300 microns.

Size:

Etymology:

from streptos, Gr., twisted, + cheilos, Gr., lip, denoting the change to an inward directed lip.

Extra details from original publication

Remarks: This genus probably evolved from Chiloguembelina, which it resembles, through infolding of the inner margin of the aperture. In view of its apparent close affinity to Chiloguembelina, the rather simple modification of the interior does not seem to warrant exclusion of this genus from classification within the Heterohelicidae. No tooth plates, such as characterize the Bolivinitidae, occur in members of this genus, and no stage of development other than biserial was observed in any specimens assigned to this taxon.

Geologic range: Lower Miocene-Recent.

Editors' Notes

References:

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

Streptochilus compiled by the pforams@mikrotax project team viewed: 2-2-2023

Taxon Search:

Advanced Search

AphiaID: 558998 Nomenclatural data on WoRMS
Short stable page link: https://mikrotax.org/pforams/index.php?id=132281 Go to Archive.is to create a permanent copy of this page - citation notes

Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information

1000

Notify me of new comments via email.

Remember my form inputs on this computer.