CATALOG OF ORIGINAL DESCRIPTIONS: Praeglobotruncana mattsoni Pessagno 1960

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 -> P -> Praeglobotruncana -> Praeglobotruncana mattsoni
Other pages this level: P. algeriana, P. barbui, P. biconvexa gigantea, P. bronnimanni, P. clotensis, P. coarctata, P. compressa, P. crassa, P. gigantea, P. hagni, P. hansbollii, P. hessi compressiformis, P. hessi hessi, P. hilalensis, P. inermis, P. klausi, P. lehmanni, P. loeblichae, P. mattsoni, P. modesta, P. oraviensis, P. oraviensis trigona, P. pauliani, P. prahovae, P. primitiva, P. pseudoalgeriana, P. rohri, P. shirakinensis, P. stephani gibba,

Praeglobotruncana mattsoni

Citation: Praeglobotruncana mattsoni Pessagno 1960
Rank: Species
Holotype Repository: Washington; USNM
Type & figured specimens: 189977 Paratype

Linked specimens: USNM-189977 USNM-189978

Current identification/main database link: Globotruncanella pschadae (Keller, 1946)


Original Description
Test trochospiral, biconvex to mildly spiroconvex, umbilicate; periphery lobulate; chambers gradually increasing in size, spherical to sub-ovate; last whorl with six or seven chambers; final chamber variously distorted and may be displaced toward umbilicus; holotype showing development of a weak single keel on last chamber; early chambers coarsely spinose; last four or five chambers smooth; sutures depressed, radial, slightly curved on both spiral and umbilical sides. Wall calcareous, finely perforate. Aperture interiomarginal, a very narrow slit, extraumbilical-umbilical in position; large apertural flaps extend into the broad, open umbilicus from each successive chamber.

References:

Pessagno, E. A. (1960). Stratigraphy and micorpaleontology of the Cretaceous and lower Tertiary of Puerto Rico. Micropaleontology. 6(1): 87-110. gs


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Praeglobotruncana mattsoni compiled by the pforams@mikrotax project team viewed: 1-10-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=132002 Go to Archive.is to create a permanent copy of this page - citation notes



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