FIGURE 54 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME

FIGURE 54 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME

FIGURE 54. Hoploscaphites plenus (Meek and Hayden, 1860), microconchs. A–C. YPM 250650, YPM loc. A6521, Fort Yates, Sioux County, North Dakota (dubious locality). A, Right lateral; B, apertural; C, ventral. D–F. AMNH 76342, AMNH loc. 3921, lower Baculites baculus Zone, Pierre Shale, Cedar Creek Anti...

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Hauptverfasser: Landman, Neil H., Kennedy, W. James, Grier, Joyce, Larson, Neal L., Grier, James W., Linn, Thomas, Tackett, Lydia, Jicha, Brian R.
Format: Bild
Sprache:eng
Schlagworte:
Animalia
Biodiversity
Cephalopoda
Hoploscaphites
Mollusca
Scaphitidae
Taxonomy
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Zusammenfassung:FIGURE 54. Hoploscaphites plenus (Meek and Hayden, 1860), microconchs. A–C. YPM 250650, YPM loc. A6521, Fort Yates, Sioux County, North Dakota (dubious locality). A, Right lateral; B, apertural; C, ventral. D–F. AMNH 76342, AMNH loc. 3921, lower Baculites baculus Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. D, Right lateral; E, apertural; F, ventral. G–I. AMNH 82964, AMNH loc. 3270, Baculites baculus Zone, Pierre Shale, Dawson County, Montana. H, apertural; I, ventral. Arrow indicates the base of the body chamber.
DOI:10.5281/zenodo.13223044