Skip to Main Content

Syncyclonema halli

Geological Range

Campanian to Maastrichtian

Paleogeographic Distribution

Wyoming to North Dakota

Stratigraphic Occurrences

Maastrichtian
Fox Hills Formation (ND)
Fox Hills Formation (SD)
Fox Hills Formation (Timber Lake Member) (ND)
Fox Hills Formation (Timber Lake Member) (SD)
Fox Hills Formation (Trail City Member) (SD)
Campanian
Pierre Shale (SD) [Campanian]
Unknown Stage
Lewis Shale (WY)
Pierre Shale (SD)
<i>Syncyclonema halli</i> from the Fox Hills Formation (Timber Lake Member) of Sioux County, North Dakota (YPM 24126).
Syncyclonema halli from the Fox Hills Formation (Timber Lake Member) of Sioux County, North Dakota (YPM 24126).
<i>Syncyclonema halli</i> from the Fox Hills Formation (Timber Lake Member) of Sioux County, North Dakota (YPM 24128).
Syncyclonema halli from the Fox Hills Formation (Timber Lake Member) of Sioux County, North Dakota (YPM 24128).
Stratigraphic position unknown
Stratigraphic position unknown