A new Late Cretaceous (Maastrichtian) serial planktic foraminifer (family Heterohelicidae) with early planispiral coil and revision of Spiroplecta Ehrenberg, 1844

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doi: 10.1016/j.geobios.2009.06.001
Author(s): Georgescu, Marius Dan; Abramovich, Sigal
Author Affiliation(s): Primary:
University of Calgary, Department of Geoscience, Calgary, AB, Canada
Ben Gurion University of the Negev, Israel
Volume Title: Geobios
Source: Geobios, 42(6), p.687-698. Publisher: Elsevier on behalf of Université Claude Bernard, Département des Sciences de la Terre, Lyon, France. ISSN: 0016-6995 CODEN: GEBSAJ
Note: In English with French summary. 40 refs.; illus., incl. 4 plates, 1 table, sketch map
Summary: A new planktic foraminifer, Hartella harti nov. gen., nov. sp. is described from the Maastrichtian sediments of the Atlantic Ocean. H. harti likely evolved from Fleisherites glabrans (Cushman). Spiroplecta Ehrenberg is reviewed and considered monospecific. The only species assigned to this genus is Spiroplecta americana Ehrenberg, which evolved from Heterohelix globulosa (Ehrenberg). It is demonstrated that the early planispiral coil developed in at least three separate lineages of serial planktic foraminifera in the Late Cretaceous (late Campanian-early Maastrichtian). Abstract Copyright (2009) Elsevier, B.V.
Year of Publication: 2009
Research Program: DSDP Deep Sea Drilling Project
ODP Ocean Drilling Program
Key Words: 10 Paleontology, Invertebrate; Asia; Atlantic Ocean; Blake Nose; Blake Plateau; Cretaceous; DSDP Site 111; DSDP Site 356; DSDP Site 357; DSDP Site 384; Deep Sea Drilling Project; Foraminifera; Globigerinacea; Hartella harti; Heterohelicidae; Invertebrata; Israel; Leg 12; Leg 171B; Leg 39; Leg 43; Maestrichtian; Mesozoic; Microfossils; Middle East; Morphology; Negev; New taxa; North Atlantic; ODP Site 1050; Ocean Drilling Program; Planktonic taxa; Protista; Rio Grande Rise; Rotaliina; SEM data; Senonian; South Atlantic; Spiroplecta americana; Taxonomy; Upper Cretaceous
Coordinates: N300600 N300600 W0761406 W0761406
N502534 N502535 W0462203 W0462203
S281713 S281713 W0410517 W0410517
N402139 N402139 W0513948 W0513948
Record ID: 2011035480
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands