Special Paper 21

Cretaceous Rocks and Their Foraminifera in the Manitoba Escarpment

CONTENTS


THE MANITOBA ESCARPMENT IN REGIONAL CONTEXT

The Western Interior Basin

Tectontic and Volcanic Activity: Their Manifestation and Role

Patterns of Sedimentation

Faunal Distribution


HISTORICAL REVIEW

Introductory Remarks

1850 to 1880

1880 to 1930

1930 to the Present

Analysis and Conclusions


NOMENCLATURE

Summary of Revised Names

Swan River Formation

Ashville Formation

Ashville Formation

Skull Creek Shale Member

Newcastle Sandstone Member

Westgate Member

Belle Fourche Shale Member

Favel Formation

Morden Shale

Niobrara Formation

Pierre Shale

Boissevain Formation


LITHOSTRATIGRAPHY

Swan River Formation

Ashville Formation

Ashville Formation

Skull Creek Shale Member

Newcastle Sandstone Member

Westgate Member--Definition and Description

Belle Fourche Shale Member

Favel Formation

Favel Formation

Keld Member

Assiniboine Member

Morden Shale

Niobrara Formation

Pierre Shale

Pierre Shale

Gammon Ferruginous Member

Pembina Member

Millwood Member

Odanah Member

Unnamed Member

Boissevain Formation


SUBSURFACE STRATIGRAPHY

Electric-Log Cross-Sections

Sub-Cretaceous Rocks

Cretaceous-Jurassic Contact

Ashville Formation

Skull Creek Shale Member

Newcastle Sandstone Member

Westgate Member

Belle Fourche Shale Member

Favel Formation

Morden Shale

Niobrara Formation

Pierre Shale

Pierre Shale

Gammon Ferruginous Member

Pembina Member

Millwood Member

Odanah Member

Unnamed Member

Boissevain Formation


BIOSTRATIGRAPHY

Composition of the Faunas

Foraminiferal Zonal Scheme

Haplophragmoides gigas Zone

Miliammina manitobensis Zone

Verneuilinoides perplexus Zone

Hedbergella loetterlei Zone

Hedbergella loetterlei Zone

Clavihedbergella simplex Subzone

Whiteinella aprica Subzone

Pseudoclavulina sp.-Trochammina sp.Zone

Globigerinelloides sp. Zone

Gavelinella henbesti Subzone

Heterohelix cf. H. reussi Subzone

Trochammina ribstonensis Zone

Glomospira corona Zone

Eoeponidella linki Zone

Haplophragmoides fraseri Zone

Haplophragmoides fraseri Zone

Dorothia cf. D. smokyensis-Gaudryina bearpawensis Subzone

Praebulimina kickapooensis Subzone


FACIES AND SEDIMENTARY CYCLES

Facies Models

The Greenhorn Cyclothem

The Niobrara Cyclothem

Controls on Cyclic Sedimentation


SYSTEMATIC PALAEONTOLOGY

Classification

Stratigraphic Sections

Deposition of Type Specimens

Family Astrorhizidae Brady, 1881

Genus Bathysiphon Sars, 1872

Genus Hippocrepina Parker, 1870

Genus Hyperammina Brady, 1878

Family Saccamminidae Brady, 1884

Genus Saccammina Sars, 1869

Genus Brachysiphon Chapman, 1906

Family Ammodiscidae Reuss, 1862

Genus Ammodiscus Reuss, 1862

Genus Glomospira Rzehak, 1885

Family Hormosinidae Haeckel, 1894

Genus Reophax de Montfort, 1808

Family Rzehakinidae Cushman, 1933

Genus Miliammina Heron-Allen and Earland, 1933

Genus Psamminopelta Tappan, 1957

Genus Silicosigmoilina Cushman and Church, 1929

Genus Spirolocammina Earland, 1934

Family Lituolidae de Blainville, 1825

Genus Haplophragmoides Cushman, 1920

Genus Thalmannammina Pokorný, 1951

Genus Trochamminoides Cushman, 1910

Genus Ammobaculites Cushman, 1910

Genus Ammobaculoides Plummer, 1932

Genus Ammomarginulina Wiesner, 1931

Genus Flabellammina Cushman, 1928

Family Textulariidae Ehrenberg, 1838

Genus Spiroplectammina Cushman, 1927

Genus Textularia Defrance, 1824

Genus Pseudobolivina Wiesner, 1931

Family Genus Trochamminidae Schwager, 1877

Genus Trochammina Parker and Jones, 1859

Family Ataxophragmiidae Schwager, 1877

Genus Verneuilina d'Orbigny, 1839

Genus Gaudryina d'Orbigny, 1839

Genus Uvigerinammina Majzon, 1943

Genus Verneuilinoides Loeblich and Tappan, 1949

Genus Arenobulimina Cushman, 1927

Genus Dorothia Plummer, 1931

Genus Gravellina Brönnimann, 1953

Family Nodosariidae Ehrenberg, 1838

Genus Nodosaria Lamarck, 1812

Genus Astacolus de Montfort, 1808

Genus Chrysalogonium Schubert, 1907

Genus Citharina d'Orbigny, 1840

Genus Dentalina Risso, 1826

Genus Frondicularia Defrance, 1826

Genus Kyphopyxa Cushman, 1929

Genus Lagena Walker and Jacob, 1798

Genus Lenticulina Lamarck, 1804

Genus Marginulina d'Orbigny, 1826

Genus Marginulinopsis Silvestri, 1904

Genus Pandaglandulina Loeblich and Tappan, 1955

Genus Pseudonodosaria Boomgaart, 1949

Genus Saracenaria Defrance, 1824

Family Polymorphinidae d'Orbigny

Genus Globulina d'Orbigny

Genus Guttulina d'Orbigny

Genus Pyrulina d'Orbigny

Genus Pyrulinoides Marie, 1941

Genus Ramulina Jones, 1875

Family Glandulinidae Reuss, 1860

Genus Fissurina Reuss, 1850

Family Turrilinidae Cushman, 1927

Genus Buliminella Cushman, 1911

Genus Neobulimina Cushman and Wickenden, 1928

Genus Praebulimina Hofker, 1953

Genus Pyramidina Brotzen, 1948

Genus Spirobolivina Hofker, 1956

Family Bolivinitidae Cushman, 1927

Genus Bolivina d'Orbigny, 1839

Genus Bolivinoides Cushman, 1927

Genus Loxostomoides Riess, 1957

Family Eouvigerinidae Cushman, 1927

Genus Eouvigerina Cushman, 1927

Genus Stilostomella Guppy, 1894

Family Discorbidae Ehrenberg, 1838

Genus Valvulineria Cushman, 1926

Family Heterohelicidae Cushman, 1927

Genus Heterohelix Ehrenberg, 1843

Genus Pseudotextularia Rzehak, 1891

Family Planomalinidae Bolli, Loeblich, and Tappan, 1957

Genus Globigerinelloides Cushman and ten Dam, 1948

Genus Hastigerinoides Brönnimann, 1952

Family Schackoinidae Pokorný, 1958

Genus Schackoina Thalmann, 1932

Family Rotaliporidae Sigal, 1958

Genus Hedbergella Brönnimann and Brown, 1958

Genus Clavihedbergella Banner and Blow, 1959

Family Marginotruncanidae Pessagno, 1967

Genus Whiteinella Pessagno, 1967

Family Globotruncanidae Brotzen, 1942

Genus Archaeoglobigerina Pessagno, 1967

Genus Rugoglobigerina Brönnimann, 1952

Family Cibicididae Cushman, 1927

Genus Planulina d'Orbigny, 1826

Family Pleurostomellidae Reuss, 1860

Genus Pleurostomella Reuss, 1860

Genus Nodosarella Rzehak, 1895

Genus Wheelerella Petters, 1954

Genus Bandyella Loeblich and Tappan, 1962

Family Caucasinidae Bykova, 1959

Genus Cassidella Hofker, 1951

Family Loxostomidae Loeblich and Tappan, 1962

Genus Loxostomum Ehrenberg, 1954

Family Nonionidae Schultze, 1854

Genus Pullenia Parker and Jones, 1862

Family Alabaminidae Hofker, 1951

Genus Alabamina Toulmin, 1941

Family Osangulariidae Loeblich and Tappan, 1964

Genus Osangularia Brotzen, 1940

Genus Globorotalites Brotzen, 1942

Genus Gyroidinoides Brotzen, 1942

Family Anomalinidae Cushman, 1927

Genus Anomalinoides Brotzen, 1942

Genus Gavelinella Brotzen, 1942

Genus Stensioina Brotzen, 1936


SUMMARY OF CONCLUSIONS


REFERENCES CITED


APPENDIX A

Descriptions of Measured Sections

Pasquia Hills Area

Outcrop Sections 1 to 22

Hudson Bay Area

Outcrop Sections 23 to 28

Porcupine Hills Area

Outcrop Sections 29 to 48

Duck Mountain Area

Outcrop Sections 49 to 64

Riding Mountain Area

Outcrop Sections 65 to 82

Millwood-Miniota Area

Outcrop Sections 83 to 85

Minnedosa Area

Outcrop Sections 86 and 87

Turtle Mountain Area

Outcrop Sections 88 to 95

Pembina Mountain Area

Outcrop Sections 96 to 107


APPENDIX B

Index of Mechanical Logs for Cross-Sections A-A' to J-J'


APPENDIX C

Foraminiferal Distribution Charts for Outcrop and Cored Borehole Sections

Pasquia Hills Area

Distribution Charts 1 to 22

Hudson Bay Area

Distribution Charts 23 to 28

Porcupine Hills Area

Distribution Charts 29 to 48

Duck Mountain Area

Distribution Charts 49 to 64

Riding Mountain Area

Distribution Charts 65 to 82

Millwood-Miniota Area

Distribution Charts 83 to 85

Minnedosa Area

Distribution Charts 86 and 87

Turtle Mountain Area

Distribution Charts 88 to 95

Pembina Mountain Area

Distribution Charts 96 to 107

Cored Borehole Sections

Distribution Charts 108 to 113


ACKNOWLEDGEMENTS

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Last modified: March 22, 2007
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