Barstow Formation

Geology

Members: unnamed (27), ? Upper (1), Calico (60), Lower (4), lower Middle (1), Middle (26), Middle Upper (1), Owl Conglomerate (1), unnamed upper (1), Upper (44)

Lithologies: not reported (8), "siliciclastic" (1), claystone (1), mudstone (2), "shale" (59), siltstone (2), sandstone (1), "carbonate" (1)

Paleoenvironments: terrestrial indet. (102), fluvial indet. (3), lacustrine - large (61), lacustrine indet. (1)

Age range: base of the Barstovian to the top of the Hemingfordian or 16.30000 to 15.97000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Hemingfordian20.43 - 15.97USA (California) (19139 106431 123022 123023 123025 123026 123027 123028 123029 123030 123031 123032 123033 123034 123035 123036 123037 123038 123039 123040 123041 123042 123043 138761 144521 144522 144523 144524 144525 152044 152196 152197 152198 152199 152200 152201 152202 152203 152204 152205 152206 152207 152212 152208 152209 152213 152214 152215 152216 152217 152218 152219 152220 152221 152222 152223 152226 152228 152229 152230 152231 152232)
Hemingfordian - Barstovian20.43 - 12.5USA (California) (19529)
Barstovian16.3 - 12.5USA (California) (19132 19133 19134 19135 19136 19137 19141 19152 19153 19154 19155 19156 19157 19158 19159 19160 19161 19162 19163 19164 19165 19166 19167 19168 19169 19170 19171 19172 19173 19174 19175 19176 19184 19193 19271 19273 19279 19280 19281 19282 19283 19284 19304 19305 19313 19314 19321 19343 19345 19356 19359 19362 19363 19364 19366 19416 19422 19423 19430 19432 19452 19457 19458 19463 19465 19471 19472 19509 19510 19513 19522 19523 19524 19525 19526 19527 19530 19548 19549 19550 19556 19557 19558 19559 19560 19561 19565 19566 19567 19568 19572 19581 19585 19598 19605 19615 19616 74792 99597 99598 214888 214889 231901)
Early/Lower Barstovian16.3 - 12.5USA (California) (19138)