Lower Cretaceous planktonic foraminiferal biostratigraphy of the western North Atlantic (ODP Leg 171B), and taxonomic clarification of key index species

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doi: 10.1016/S0035-1598(02)80003-4
Author(s): Bellier, Jean-Pierre; Moullade, Michel
Author Affiliation(s): Primary:
Université Pierre et Marie Curie, Département de Géologie Sédimentaire, Paris, France
Other:
Université de Nice-Sophia-Antipolis, France
Volume Title: Revue de Micropaléontologie
Source: Revue de Micropaléontologie, 45(1), p.9-26. Publisher: Elsevier, Paris, France. ISSN: 0035-1598 CODEN: RMCPAM
Note: In English with French summary. 44 refs.; illus., incl. 3 plates, 4 tables, sketch map
Summary: An upper Aptian to Cenomanian sedimentary succession containing unusually well-preserved planktonic foraminifers was documented during ODP Leg 171B, which was devoted to the study of the Blake Plateau off Florida. With the exception of two zones within the Albian, an almost continuous composite section permits detailed investigation of the evolution of the foraminiferal assemblages. Emphasis in this paper is placed on the Aptian/Albian and Albian/Cenomanian transitions. In addition, the excellent preservation of the material enables some taxonomic revision, mainly on the basis of wall microstructural characters, of several planktonic foraminiferal lineages and taxa, such as the Hedbergella praetrocoidea-H. trocoidea-Ticinella eubejaouaensis phylogenetic relationship and the Rotalipora globotruncanoides or Hedbergella rischi species concepts.
Year of Publication: 2002
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Assemblages; Atlantic Ocean; Biostratigraphy; Blake Nose; Blake Plateau; Cretaceous; Faunal list; Foraminifera; Globigerinacea; Hedbergella; Hedbergella rischi; Hedbergella trocoidea; Invertebrata; Leg 171B; Lower Cretaceous; Mesozoic; Microfossils; Morphology; North Atlantic; ODP Site 1049; ODP Site 1050; ODP Site 1051; ODP Site 1052; ODP Site 1053; Ocean Drilling Program; Planktonic taxa; Planomalina cheniourensis; Protista; Rotaliina; Rotalipora; Rotalipora globotruncanoides; Taxonomy; Ticinella; Ticinella eubejaouaensis
Coordinates: N295000 N301000 W0760000 W0770000
Record ID: 2004075455
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