Antelope Valley Formation

Geology

Group: Pogonip

Members: unnamed (125), Anomalorthis Zone (1), Barnes Unit 12 (1), Lower (13), Middle (29), Nileus Beds (1), Paiute Ridge (3), Ranger Mountains (6), Unit H (1), Unit I (11), Upper (32)

Lithologies: not reported (3), "shale" (2), siltstone (5), lime mudstone (10), wackestone (4), "limestone" (185), dolomite (20)

Paleoenvironments: marine indet. (2), carbonate indet. (26), peritidal (1), shallow subtidal indet. (135), open shallow subtidal (1), lagoonal/restricted shallow subtidal (3), sand shoal (2), reef, buildup or bioherm (10), perireef or subreef (15), deep subtidal shelf (27), offshore indet. (1), transition zone/lower shoreface (1)

Age range: base of the Fennian to the top of the Darriwilian or 470.70000 to 458.40000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ibexian487.5 - 470.0USA (Nevada) (104274 104275 104307 104308 104312 104313 104434 104436 104437 104439 104440 104441)
Early/Lower Ordovician - Middle Ordovician485.4 - 458.4USA (California) (226286 226287 226288 226291 226292)
Blackhillsian - Rangerian474.9 - 470.3USA (Nevada) (104300 104356)
Blackhillsian474.9 - 470.0USA (Nevada) (104301)
Fennian470.7 - 468.0USA (Nevada) (80075 80076)
Rangerian470.0 - 470.3USA (Nevada) (297 80059 80067 80068 80077 104286 104287 104288 104289 104290 104397 104399 104400 104407 104408 104409 104411 104413 104414 104416 104425 104426 104427 104428 104429 104430 104448 104450 104452 104453 104458 104459 104460 104461 104634 104652 104653 104654 104655 119435 183606 195515 195516)
Rangerian470.0 - 470.3USA (California) (104305 104638)
Dapingian470.0 - 467.3USA (Nevada) (208026)
Dapingian470.0 - 467.3USA (California) (104639 226290)
Rangerian - Whiterockian470.0 - 457.3USA (California) (104640 104641)
Rangerian - Whiterockian470.0 - 457.3USA (Nevada) (104417 104421)
Whiterockian470.0 - 457.3USA (California) (104635 208573 226285 226289 226293 226695)
Whiterockian470.0 - 457.3USA (Nevada) (300 301 423 13605 14229 14232 14238 14241 80054 80055 80056 80058 80061 80062 80063 80065 80066 80069 80070 80071 80072 80073 80078 80080 80081 88946 90654 104276 104278 104279 104280 104281 104282 104283 104284 104285 104291 104292 104293 104294 104295 104296 104297 104298 104299 104302 104303 104304 104309 104310 104311 104314 104315 104316 104368 104369 104370 104371 104372 104373 104374 104375 104376 104377 104378 104379 104380 104381 104382 104383 104384 104386 104387 104388 104389 104390 104391 104392 104393 104394 104395 104396 104398 104406 104410 104412 104415 104418 104419 104420 104423 104424 104432 104435 104438 104442 104443 104444 104445 104446 104447 104449 104451 104454 104455 104456 104457 104462 104463 104464 104465 104466 104467 104468 104469 104470 104471 104472 104473 104474 104475 104476 104477 104478 105565 105567 105568 156585 186635 210662 210656 210657 210658 210659 210660 210661 210663 210812 226715 233163)
Darriwilian467.3 - 458.4USA (Nevada) (296 226922 226923 226924)