Catalog - Hantkenina mccordi Catalog - Hantkenina mccordi

CATALOG OF ORIGINAL DESCRIPTIONS: Hantkenina mccordi Howe & Wallace 1932

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 mccordi
Other pages this level: H. (Schackoina) senoniensis, H. alabamensis, H. alabamensis compressa, H. alabamensis primitiva, H. australis, H. brevispina, 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 mccordi

Citation: Hantkenina mccordi Howe & Wallace 1932
taxonomic rank: Species
Type specimens: no. 605
Type sample (& lithostrat): Upper Horizon (Bed 2), light yellow clay. Rare.
Type age (chronostrat): Upper Eocene, Jackson
Type locality: Danville Landing on the Ouachita River, Catahoula Parish, Louisiana.
Type repository: Baton Rouge; Louisiana State University Museum Collection, Baton Rouge, Louisiana

Current identification:

Original Description

Test planispiral, billateraly symmetrical; periphery lobate; chambers inflated, almost spherical in shape, five in the last coil, each provided with an elongate, hollow spine, located on the periphery near the contact with the next younger chamber, the last chamber being about twice the size of the preceding one and located so that it incloses part of the spine of that chamber; wall smooth, calcareous, finely perforate; aperture an elliptical opening located at the contact of the last chamber with the preceding coil, provided with irregularly spaced, short teeth, the aperture so large that part of the preceding coil with the enclosed spine of previous chamber can be seen through it; the aperture of the next to the last chamber also remains open at the umbilicus.

Diameter of the last chamber 0.6 mm.

Extra details from original publication
This species is similar in shape to Hantkenina inflata Howe, but differs from it in the character of the aperture.


Coxall, H. K. & Pearson, P. N. (2006). Taxonomy, biostratigraphy, and phylogeny of the Hantkeninidae (Clavigerinella, Hantkenina and Cribrohantkenina). In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 41(Chap 8): 213-256. gs O

Howe, H. V. & Wallace, W. E. (1932). Foraminifera of the Jackson Eocene at Danville Landing on the Ouachita, Catahoula Parish, Louisiana. Bulletin of the Geological Survey of Louisiana. 2: 1-118. gs


Hantkenina mccordi compiled by the pforams@mikrotax project team viewed: 24-7-2024

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