Blue Mesa Member

Geology

Formation: Chinle

Lithologies: not reported (34), claystone (1), mudstone (9), siltstone (6), sandstone (9), conglomerate (1), grainstone (1)

Paleoenvironments: terrestrial indet. (51), fluvial indet. (3), fine channel fill (1), crevasse splay (2), fluvial-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
Late/Upper Triassic237.0 - 201.4USA (Arizona) (231952)
Norian228.0 - 208.5USA (New Mexico) (75652 75656 75657 75658 75659)
Norian228.0 - 208.5USA (Arizona) (22705 48547 52499 57683 62206 62286 84264 92810 92824 92826 92850 92852 92854 92856 92910 92911 93115 93118 93123 93132 93133 93135 93351 93352 93353 93354 93355 93356 93357 93358 93362 93363 93364 93478 93488 93497 93500 93541 93542 93544 93547 93549 93550 93551 93571 94497 196662 215309 218122 218744 223390)
Norian228.0 - 208.5USA (Utah) (92321)