[1] In the Oklahoma type location, the Red Eagle is a single limestone unit, not further defined into members.
However, from the far southeast Nebraska type section into northern Kansas, the Red Eagle Formation consists of three members, each with distinctive lithologies.
In Nebraska and northern Kansas in particular, the formation stands out on riverside bluffs and road cuts as two blocky, light-colored limestones sandwiching a dark layer of shale.
[4] This very dark shale shows contrasting light-colored, circular, thin-shelled Orbiculoidea, roughly 1cm (1/3") in diameter.
[5] It is a hard limestone; fresh fractures sparkle in full sunlight from tiny calcite crystals.