Redonda Formation

Geology

Group: Chinle

Members: unnamed (20), Duke Ranch (3), Quay (2), Red Peak (1), San Jon Creek (1), Wallace Ranch (1)

Lithologies: not reported (21), claystone (1), mudstone (2), siltstone (3), conglomerate (4), "limestone" (1)

Paleoenvironments: terrestrial indet. (3), channel lag (1), "floodplain" (1), crevasse splay (1), fluvial-deltaic indet. (1), lacustrine - large (19), lacustrine - small (1), lacustrine indet. (1)

Age range: Norian or 228.00000 to 208.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Norian228.0 - 208.5USA (New Mexico) (52168 83737 83738 83739 83959 83960 84272 89969 93641 93643 93645 93646 93647 93649 93650 93651 93653 93658 93661 93662 93663 93664 93665 93666 93667 93671 93672 93682)