A new type of test wall in the Late Cretaceous (late Santonian-Campanian) heterohelicid planktic Foraminifera

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doi: 10.1016/j.revmic.2010.08.003
Author(s): Georgescu, Marius Dan
Author Affiliation(s): Primary:
University of Calgary, Department of Geosciences, Calgary, AB, Canada
Volume Title: Revue de Micropaléontologie
Source: Revue de Micropaléontologie, 54(2), p.105-114. Publisher: Elsevier, Paris, France. ISSN: 0035-1598 CODEN: RMCPAM
Note: In English with French summary. 39 refs.; illus., incl. 1 table, 2 plates
Summary: The first Cretaceous serial planktic foraminifer (family Heterohelicidae Cushman, 1927) with simple-ridged test wall is reported from the uppermost Santonian-lower Campanian sediments of the Deep Sea Drilling Project Site 463 (Mid-Pacific Mountains, equatorial Central Pacific). Hendersonites pacificus n. sp. is characterized by the reduced ornamentation over the last pairs of chambers and strong peripheral costae lining the periphery with test wall flexure. This species evolved from H. carinata (Cushman, 1938) of the upper Santonian-Campanian, a frequently reported species from the Atlantic Ocean, Gulf of Mexico and Western Tethyan Realm. Abstract Copyright (2011) Elsevier, B.V.
Year of Publication: 2011
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 10 Paleontology, Invertebrate; Atlantic Coastal Plain; Atlantic Ocean; Blake Nose; Blake Plateau; Campanian; Caribbean Sea; Cretaceous; DSDP Site 150; DSDP Site 356; DSDP Site 357; DSDP Site 463; DSDP Site 511; DSDP Site 95; Deep Sea Drilling Project; Foraminifera; Globigerinacea; Gulf of Mexico; Hendersonites pacificus; Heterohelicidae; IPOD; Invertebrata; Leg 10; Leg 113; Leg 15; Leg 171B; Leg 174AX; Leg 39; Leg 62; Leg 71; Maud Rise; Mesozoic; Microfossils; Microstructure; Mid-Pacific Mountains; Morphology; New taxa; North Atlantic; North Pacific; Northwest Pacific; ODP Site 1050; ODP Site 690; Ocean Drilling Program; Ornamentation; Pacific Ocean; Planktonic taxa; Protista; Rio Grande Rise; Rotaliina; SEM data; Santonian; Senonian; South Atlantic; Southern Ocean; Taxonomy; Tests; United States; Upper Cretaceous; Venezuelan Basin; Weddell Sea; West Pacific
Coordinates: N212101 N212101 E1744004 E1744004
S510017 S510017 W0465818 W0465818
N383000 N401500 W0740000 W0753500
S281713 S281713 W0410517 W0410517
Record ID: 2012020046
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands