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Yoldia rectangularis

Geological Range

Maastrichtian

Paleogeographic Distribution

South Dakota

Stratigraphic Occurrences

Maastrichtian
Fox Hills Formation (Timber Lake Member) (SD)
Fox Hills Formation (Trail City Member) (SD)
Unknown Stage
Pierre Shale (MT)
Paratype of <i>Yoldia rectangularis</i> from the Fox Hills Formation (Trail City Member) of Corson County, South Dakota (YPM 24553).
Paratype of Yoldia rectangularis from the Fox Hills Formation (Trail City Member) of Corson County, South Dakota (YPM 24553).
Stratigraphic position unknown
Stratigraphic position unknown