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Hoploscaphites birkelundi

Geological Range

Maastrichtian.

Paleogeographic Distribution

Wyoming.

Remarks

Original presentation: Hoploscaphites birkelundi

Original publication: Landman, N. H. and K. M. Waage. 1993. Scaphitid ammonites of the Upper Cretaceous (Maastrichtian) Fox Hills Formation in South Dakota and Wyoming. Bulletin of the American Museum of Natural History, Number 215, 257 pp. [p. 119-127, figs. 60, 85-90]. Download here.

Holotype: YPM 27172.

Type locality: Niobrara County, Wyoming.

Type horizon: Fox Hills Formation.

Zonation: Hoploscaphites birkelundi zone (Cobban et al., 2006).

PaleoDB taxon number: 340269.

Reference: Landman and Waage (1993).

Origin of name: “named in honor of the late Dr. Tove Birkelund” (Landman and Waage, 1993, p. 119).

Stratigraphic Occurrences

Maastrichtian
Fox Hills Formation (WY)
Holotype of <i>Hoploscaphites birkelundi</i> from the Fox Hills Formation of Niobrara County, Wyoming (YPM 27172) (macroconch).
Holotype of Hoploscaphites birkelundi from the Fox Hills Formation of Niobrara County, Wyoming (YPM 27172) (macroconch).
Holotype of <i>Hoploscaphites birkelundi</i> (YPM 27172) (macroconch). See original caption for additional details. Image modified from fig. 85G-K in Landman and Waage (1993 in <i>Bulletin of the American Museum of Natural History</i>, no. 215) and used with permission.
Holotype of Hoploscaphites birkelundi (YPM 27172) (macroconch). See original caption for additional details. Image modified from fig. 85G-K in Landman and Waage (1993 in Bulletin of the American Museum of Natural History, no. 215) and used with permission.
Microconch specimen of <i>Hoploscaphites birkelundi</i> (YPM 27218). See original caption for additional details. Image modified from fig. 87G-I in Landman and Waage (1993 in Bulletin of the American Museum of Natural History, no. 215) and used with permission.
Microconch specimen of Hoploscaphites birkelundi (YPM 27218). See original caption for additional details. Image modified from fig. 87G-I in Landman and Waage (1993 in Bulletin of the American Museum of Natural History, no. 215) and used with permission.
Sutures of <i>Hoploscaphites birkelundi</i>. See original caption for additional details. Image modified from fig. 90 in Landman and Waage (1993 in <i>Bulletin of the American Museum of Natural History</i>, no. 215) and used with permission.
Sutures of Hoploscaphites birkelundi. See original caption for additional details. Image modified from fig. 90 in Landman and Waage (1993 in Bulletin of the American Museum of Natural History, no. 215) and used with permission.
<i>Hoploscaphites birkelundi</i> from the Maastrichtian Fox Hills Fm. of Niobrara County, Wyoming (YPM 76061).
Hoploscaphites birkelundi from the Maastrichtian Fox Hills Fm. of Niobrara County, Wyoming (YPM 76061).

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