CATALOG OF ORIGINAL DESCRIPTIONS: Hantkenina australis Finlay 1939

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 -> H -> Hantkenina -> Hantkenina australis
Other pages this level: H. alabamensis, H. alabamensis compressa, H. alabamensis primitiva, H. australis, H. brevispina, H. compressa, H. danvillensis, H. dumblei, H. gohrbandti, H. inflata, H. lazzarii, H. lehneri, H. liebusi, H. longispina, H. mccordi, H. mexicana, H. mexicana aragonensis, H. multispinata, H. nanggulanensis, H. nuttalli, H. singanoae, H. trituberculata,

Hantkenina australis

Citation: Hantkenina australis Finlay 1939
Rank: Species
Holotype Repository: USNM

Linked specimens: USNM-26782

Current identification/main database link: Hantkenina australis Finlay 1939


Original Description: "A fully satisfactory description of this species cannot yet be given, as no well preserved, unbroken examples have yet been found. Though it occurs at a number of localities, it is generally so rare and fragile that a composite description must be drawn up from a number of specimens. The genus is, however, of such interest and importance that the record is made in spite of this. "The species is best described by a comparison with H. alabamensis, the genotype, which it most nearly resembles. It has similarly compressed chambers but the sutural gutters are deeper and more marked. No examples have been seen with other than five chambers. The spine, as in alabamensis, is directly adjacent to the next suture (not as in mexicana and its allies quite distant from it); it is of about the same relative legth when unbroken (as long as or longer than the distance from its bas to the umbilicus) but instead of being practically straight as in alabamensis, it usually has a decided backward curve. A notable difference is that the succeeding chamber begins at the base of the spine at the same level as the previous one and does not start some distance up the spine, as is usual in alabamensis. The aperture is similar to that figured by Cushman (1924, Proc. U. S. Nat. Mus., vol. 66, art. 30, p. 3) but is narrower and the basal wings are distinctly less spread, diverging at less than 90ÃÉÂÇÃÇ°, instead of considerably more. Paratype measures 0.6 mm. in diameter (without spines) and 0.3 mm. in thickness. The type will be figured later. Five damaged but uniform specimens were found showing some perfect spines and highly polished surface, minutely but distinctly perforate. "The Eocene species recorded from Mexico by Nuttal (1930, Journ. Pal., vol. 4, no. 3, p. 272) have little similarity to the New Zealand form, with the possible exception of H. longispina, nut this has a little more open umbilicus, a lobulate periphery and a spine, though of similar length, not quite adjacent to the following suture."

References:

Finlay, H.J., (1939). New Zealand foraminifera: Key species in stratigraphy - no. 1. Transactions of the Royal Society of New Zealand, 68: 504-533.

Finlay, H.J., (1939). New Zealand foraminifera: Key species in stratigraphy - no. 3. Transactions of the Royal Society of New Zealand, 69(3): 309-329.

Finlay, H.J., (1939). New Zealand foraminifera: Key species in stratigraphy - no. 2. Transactions of the Royal Society of New Zealand, 69(1): 89-128.


logo

Hantkenina australis compiled by the pforams@mikrotax project team viewed: 23-9-2017

Taxon Search:
Advanced Search
AphiaID: 735275 Nomenclatural data on WoRMS
Go to Archive.is to create a permanent copy of this page - citation notes



Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics