CATALOG OF ORIGINAL DESCRIPTIONS: Archaeoglobigerina bosquensis Pessagno 1967

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 -> A -> Archaeoglobigerina -> Archaeoglobigerina bosquensis
Other pages this level: A. australis, A. blowi, A. bosquensis, A. mateola, A. subplana

Archaeoglobigerina bosquensis

Citation: Archaeoglobigerina bosquensis Pessagno 1967
Rank: Species
Type locality: From sample TX226, taken at 107' above the level of the South Bosque River, Lovers Leap, Cameron Park, Waco, McLennan County, TX.
Type age (chronostrat): Santonian (Austinian), Marginotruncana concavata Subzone,
Type sample (& lithostrat): Austin Chalk
Type specimens: Plate 60, figures 7-12; 689281
Type repository: Washington; USNM

Linked specimens: USNM-689280 USNM-689281

Current identification/main database link: Archaeoglobigerina bosquensis Pessagno 1967


Original Description
"Test coiled in relatively high trochospiral coil; 6-7 chambers in last whorl. Coiling sinistral or dextral with no preferences insofar as known. Chambers spherical in shape about as wide as long; tending to shift toward the umbilicus with coiling. Sutures curved, radial, depressed both spirally and umbilically. Umbilicus deep and of moderate to small size. Early chambers of last whorl somewhat rugose. Keels, imperforate peripheral bands lacking in specimens thus far encountered. Primary aperture interiomarginal, umbilical in position; no evidence of tegilla due to unfavorable conditions of preservation in Austin chalk. Outer wall radial hyaline perforate; septal walls microgranular hyaline, finely perforate."

Etymology: from the South Bosque River.

Extra details from original publication
Remarks.- A. bosquensis differa from A. bfowi (1) by being equally dextrally and sinistally coiled; (2) by having relatively high trochoidal spire: (3) b) having a somewhat smaller. deeper umbilicus (4) by usually having six or seven as opposed to four or five chambers in the last whorl: (5) by having chambers which gradually increase in size: and (6) by lacking keels and imperforate peripheral bands.

References:

Pessagno, E. A. (1967). Upper Cretaceous planktonic foraminifera from the western Gulf Coastal Plain. Palaeontographica Americana. 5: 245-445. gs V O


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Archaeoglobigerina bosquensis compiled by the pforams@mikrotax project team viewed: 24-7-2021

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