Pioche Formation

Geology

Members: unnamed (3), A-Shale (2), C-Shale (1), Comet Shale (2)

Lithologies: not reported (6), claystone (7), mudstone (27), "shale" (39), siltstone (2), sandstone (2), packstone (59), grainstone (1), "limestone" (83)

Paleoenvironments: marine indet. (51), carbonate indet. (44), shallow subtidal indet. (7), marginal marine indet. (8)

Age range: base of the Dyeran to the top of the Delamaran or 515.30000 to 506.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Caerfai - St Davids538.8 - 497.0USA (Nevada) (9623 9624)
Lenian516.0 - 510.2USA (Nevada) (9821 9822)
Dyeran515.3 - 511.2USA (Nevada) (8665 9214 9238 9622 9820 10560 10568 10569 10571 155973 155975 155976 156353 156372 156373 156374 156375 156376 156377 204998 204999 205000 205007 234283 234284 234285 234286)
Dyeran515.3 - 511.2USA (Utah) (96497)
Delamaran511.2 - 506.5USA (Nevada) (9220 9410 9411 9412 9431 9435 9475 9621 10570 77188 77203 77204 77205 155978 155979 155984 155985 155991 155993 155995 155996 155997 155998 205001 205010 232724 232726 234714 234715)
Delamaran511.2 - 506.5USA (Utah) (269)
Solvan510.2 - 504.5USA (Nevada) (9218 9219 9215 9216 9217 9234 9235 9241 9242 9236 9243 9237 9244 9233 9245 9240 9246 9248 9247 9249 9252 9253 9254 9251 9256 9250 9255 9258 9257 9259 9260 9261 9413 9414 9415 9416 9419 9417 9418 9422 9424 9425 9426 9423 9428 9427 9429 9430 9421 9420 9438 9436 9445 9444 9433 9432 9437 9434 9452 9439 9440 9441 9442 9443 9466 9468 9467 9469 9472 9446 9447 9473 9448 9449 9474 9450 9451 9455 9456 9457 9458 9460 9462 9461 9463 9464 9465 9454 9453 9459)
Solvan - St Davids510.2 - 497.0USA (Nevada) (9239)
St Davids509.0 - 497.0USA (Nevada) (50093 50110 50094 50095 50096 50097 50098 50099 50100 50101 50102 50103 50106 50107 50108 50109 50111 50112 50113 50114 50115 50292 50293 50294 50295 50296 50297 50298 50299 50300 50301 50322 50323 50324 50325 50326 50327 50328 50329 50330 50331 50332 50333 50334 50335 50336 50337 50338 50339)