665:
703:
114:
664:
657:
units are separated by distance, and type of deposition material; the local subsidence, or uplift, as well as glaciation, and sea level changes, can cause variations in the deposition sequences of transgression-regressions. The ocean was to the west of the proto-North
American continent, but also
380:, and regression, thus the alternating sandstone, siltstones, conglomerate subsections (facies); the subsections are not always a continuous transition into the above section, mostly due to ocean levels, falling, or rising, glaciation, or regional
396:, off-shore volcanic island arch(es)), of ancient Nevada supplied material, from the west, off the 'ancestral' West Coast. The continent supplied material from the east, both directions supplying the offshore basin, the
872:, Ron Blakey, Wayne Ranney, c 2008, Grand Canyon Association (publisher), 176 pages, with Appendix, Glossary, Index. Contains approximately 75 shaded topographic maps, for geology, etc., with 54 (23 pairs, (46)) for
293:
units of
Wescogame Formation and the Supai Group are replaced by geologic units formed from geology deposited in relationship to the former basin to the south-southeast in Arizona, the
909:
939:
734:. Lockley and Hunt (1995) described Gilmore's work as "successful" and he ended by publishing several papers about the local footprints including those from the
914:
702:
325:
The Late
Pennsylvanian-Early Permian geologic sequence of the Supai Group common in the Grand Canyon: The Pennsylvanian is the Late Carboniferous.
904:
934:
888:
388:
is the approximate lineage, NNE to SSW of the western coast region of North
America from where the oceans transgressed. The ancient
924:
929:
275:'redbeds' (member three of four major units), with the Supai Group found in other sections of Arizona, especially in the
542:
722:. Charles Gilmore visited the Grand Canyon area during the 1920s to collect specimens of these footprints for the
919:
548:
405:
401:
723:
413:
355:
302:
268:
229:
33:
638:
632:
626:
458:
454:
450:
397:
693:
538:
389:
346:
757:
650:
603:
524:
377:
368:
294:
252:
584:
514:
417:
362:
335:
160:
149:
745:
678:
884:
719:
248:
873:
833:
674:
310:
284:
203:
314:
306:
742:
393:
404:, in later epochs. Three other basins were involved in this history: southwest of the
898:
735:
505:
487:
433:
409:
385:
244:
129:
72:
27:
837:
738:
731:
518:
468:
298:
280:
276:
260:
236:
219:
215:
283:, just eastwards or part of the basement Supai Group of the southwest & south
689:
684:
478:
429:
329:
272:
139:
113:
47:
381:
92:
57:
856:"Western Traces in the 'Age of Amphibians'," Lockley and Hunt (1995); p. 34.
727:
256:
240:
188:
184:
97:
41:
673:
slopes directly below upper-vertical-cliff of
Esplanade Sandstone-(below
87:
82:
67:
62:
52:
376:
The Supai Group members were created from marine (oceanic) sequences of
339:
264:
102:
77:
654:
290:
301:
region, and the earlier deposition of the red rock sandstone of the
726:. He also wanted to create an exhibit and interpretive center for
718:
Fossil footprints were first discovered in the area in 1915 by
852:
850:
848:
846:
438:
883:
Ivo
Lucchitta, c 2001, Mountaineers's Books. (softcover,
412:-(eastern Utah to Southwest Colorado), northeast was the
297:, of the Pedregosa Sea, which extended northeast to the
120:(ridgeline extending north from South Rim, Grand Canyon)
420:
was north-northwest, at present day northwest Utah.
876:
specifically; others are global, or North
American.
210:
199:
194:
180:
175:
167:
156:
145:
135:
125:
21:
832:Blakey and Ranney (2008): 165 Ma map: (upper)-
259:, etc.), and found throughout sections of the
171:200 feet (61 m) max (100β200 ft typical)
8:
696:miles westward in Grand Canyon, and Nevada)
424:Supai Group and Hermosa Group, coeval units
384:-(basins, etc.) or uplift of land. Today's
870:Ancient Landscapes of the Colorado Plateau
18:
910:Sandstone formations of the United States
436:, Arizona, Utah, and northwest Colorado:
416:-(NW Colorado, NE Utah, SW Wyoming); the
444:Grand Canyon & central-northeast AZ
279:region, or as a basement unit below the
271:. It is one of the upper members of the
222:and central & east-northeast Arizona
16:Geological formation in the Grand Canyon
773:
660:
940:Carboniferous System of North America
7:
118:representative Supai Group 'redbeds'
915:Natural history of the Grand Canyon
810:Blakey and Ranney (2008) p. xviii.
349:at west Grand Canyon & Nevada)
317:, and other related sub-regions).
14:
163:, (2nd member)-Supai Group-312 Ma
701:
663:
653:cover distances, over time, the
112:
801:Blakey and Ranney (2008) p. 40.
440:
905:Geologic formations of Arizona
354:3 β Wescogame Formation-(Late
1:
823:, (cross-sections), p. XVIII.
551:-(east & southeast) Utah
247:, formed from an addition of
447:Utah β east & southeast
935:Pennsylvanian North America
956:
868:Blakey, and Ranney, 2008.
819:Blakey and Ranney (2008):
780:Blakey and Ranney (2008):
152:, (4th member)-Supai Group
881:Hiking Arizona's Geology,
658:northwest, or southwest.
549:Elephant Canyon Formation
406:Ancestral Rocky Mountains
400:which became part of the
111:
26:
402:Basin and Range Province
218:, and basement rocks of
724:Smithsonian Institution
611:"Ancestral Rocky Mtns"
592:"Ancestral Rocky Mtns"
573:"Ancestral Rocky Mtns"
554:"Ancestral Rocky Mtns"
529:"Ancestral Rocky Mtns"
428:The approximate coeval
303:Schnebly Hill Formation
269:Southwest United States
497:(eroded to sea level,
494:"Ancestral Rocky Mtns"
414:Central Colorado Basin
925:Carboniferous Arizona
821:"Geologic X-sections"
730:tracks like these at
708:Close-up of 'redbeds'
651:marine transgressions
517:-(Grand Canyon &
483:~340β(330) to 285 Ma
206:, southwest and south
930:Pennsylvanian Series
758:Marine transgression
604:Watahomigi Formation
525:Cedar Mesa Sandstone
378:marine transgression
369:Watahomigi Formation
253:marine transgression
790:Manakacha Formation
692:for Grand Canyon; (
671:Wescogame Formation
585:Manakacha Formation
566:Wescogame Formation
515:Esplanade Sandstone
363:Manakacha Formation
336:Esplanade Sandstone
233:Wescogame Formation
161:Manakacha Formation
150:Esplanade Sandstone
28:Stratigraphic range
22:Wescogame Formation
746:Coconino Sandstone
679:Coconino Sandstone
879:Lucchitta, 2001.
720:Charles Schuchert
714:Fossil footprints
647:
646:
398:Cordilleran Basin
321:Geologic sequence
228:The (Upper) Late
226:
225:
947:
920:Colorado Plateau
874:Colorado Plateau
857:
854:
841:
834:Carmel Formation
830:
824:
817:
811:
808:
802:
799:
793:
778:
705:
694:Pakoon Limestone
688:, with complete
675:Hermit Formation
667:
539:Pakoon Limestone
439:
390:Antler Mountains
347:Pakoon Limestone
311:Oak Creek Canyon
285:Colorado Plateau
204:Colorado Plateau
116:
107:
44:
19:
955:
954:
950:
949:
948:
946:
945:
944:
895:
894:
865:
860:
855:
844:
831:
827:
818:
814:
809:
805:
800:
796:
779:
775:
771:
766:
754:
716:
709:
706:
697:
682:
668:
636:
630:
615:
596:
577:
558:
496:
482:
471:
466:
464:
457:
453:
443:
426:
323:
315:Sycamore Canyon
307:Sedona, Arizona
295:Pedregosa Basin
251:sand, added to
121:
119:
106:
105:
100:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
39:
38:
37:
31:
17:
12:
11:
5:
953:
951:
943:
942:
937:
932:
927:
922:
917:
912:
907:
897:
896:
893:
892:
877:
864:
861:
859:
858:
842:
825:
812:
803:
794:
772:
770:
767:
765:
762:
761:
760:
753:
750:
743:Middle Permian
715:
712:
711:
710:
707:
700:
698:
669:
662:
645:
644:
642:
623:
621:
618:
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580:
579:
574:
571:
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561:
560:
555:
552:
546:
534:
533:
530:
527:
522:
510:
509:
502:
491:
484:
474:
473:
465:(northwest)-CO
463:(northeast)-UT
461:
448:
445:
434:Hermosa Groups
425:
422:
394:Antler orogeny
374:
373:
372:
371:
365:
359:
352:
351:
350:
322:
319:
224:
223:
214:Grand Canyon,
212:
208:
207:
201:
197:
196:
192:
191:
182:
178:
177:
173:
172:
169:
165:
164:
158:
154:
153:
147:
143:
142:
137:
133:
132:
127:
123:
122:
117:
109:
108:
101:
96:
91:
86:
81:
76:
71:
66:
61:
56:
51:
46:
45:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
952:
941:
938:
936:
933:
931:
928:
926:
923:
921:
918:
916:
913:
911:
908:
906:
903:
902:
900:
890:
889:0-89886-730-4
886:
882:
878:
875:
871:
867:
866:
862:
853:
851:
849:
847:
843:
840:, pp. 76, 78.
839:
835:
829:
826:
822:
816:
813:
807:
804:
798:
795:
791:
787:
783:
777:
774:
768:
763:
759:
756:
755:
751:
749:
747:
744:
740:
737:
736:Early Permian
733:
729:
725:
721:
713:
704:
699:
695:
691:
687:
686:
680:
676:
672:
666:
661:
659:
656:
652:
643:
641:
640:
635:
634:
629:
628:
624:
622:
620:
619:
613:
610:
607:
605:
601:
600:
594:
591:
588:
586:
582:
581:
575:
572:
569:
567:
563:
562:
556:
553:
550:
547:
544:
540:
536:
535:
531:
528:
526:
523:
520:
516:
512:
511:
508:
507:
506:Hermosa Group
503:
500:
495:
492:
490:
489:
488:Hermosa Group
485:
481:
480:
476:
475:
470:
462:
460:
456:
452:
449:
446:
441:
437:
435:
431:
423:
421:
419:
418:Oquirrh Basin
415:
411:
410:Paradox Basin
407:
403:
399:
395:
391:
387:
386:Wasatch Front
383:
379:
370:
366:
364:
360:
357:
356:Pennsylvanian
353:
348:
344:
343:
341:
337:
333:
332:
331:
328:
327:
326:
320:
318:
316:
312:
308:
304:
300:
296:
292:
288:
286:
282:
278:
274:
270:
266:
262:
258:
254:
250:
246:
245:geologic unit
243:, red-orange
242:
238:
237:slope-forming
234:
231:
230:Pennsylvanian
221:
217:
213:
209:
205:
202:
198:
193:
190:
186:
183:
179:
174:
170:
166:
162:
159:
155:
151:
148:
144:
141:
138:
134:
131:
130:Geologic unit
128:
124:
115:
110:
104:
99:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
43:
40:312β300
35:
34:Pennsylvanian
29:
25:
20:
880:
869:
863:Bibliography
838:Sundance Sea
828:
820:
815:
806:
797:
789:
785:
784:map, p. 39,
781:
776:
739:Hermit Shale
732:Hermit Trail
717:
683:
681:prominence).
670:
648:
637:
631:
625:
565:
543:Grand Canyon
519:Verde Valley
504:
498:
493:
486:
477:
469:Uintah Basin
427:
375:
324:
299:Verde Valley
289:
281:Mogollon Rim
277:Verde Valley
261:Grand Canyon
232:
227:
220:Mogollon Rim
216:Verde Valley
792:map, p. 33.
690:Supai Group
685:Isis Temple
545:, & NV
479:Supai Group
330:Supai Group
273:Supai Group
140:Supai Group
899:Categories
764:References
677:and white
608:(Hermosa)
589:(Hermosa)
570:(Hermosa)
382:subsidence
257:siltstones
255:deposits (
769:Footnotes
728:Paleozoic
633:compahgre
616:members?
597:members?
578:members?
559:members?
455:compahgre
442:Arizona β
309:region, (
305:, of the
241:sandstone
189:siltstone
185:sandstone
176:Lithology
168:Thickness
146:Underlies
752:See also
741:and the
649:Because
541:-(west)-
532:xxxxxxx
521:region)
467:(proto)β
408:was the
338:-(Early
195:Location
157:Overlies
836:, with
614:Hermosa
595:Hermosa
576:Hermosa
557:Hermosa
472:region
340:Permian
265:Arizona
181:Primary
136:Unit of
887:
786:312 Ma
782:300 Ma
655:coeval
639:Uplift
627:Uncom-
499:165 Ma
459:Uplift
451:Uncom-
345:3B β (
291:Coeval
249:eolian
211:Extent
200:Region
32:Upper
430:Supai
263:, in
235:is a
885:ISBN
513:4 -
432:and
367:1 β
361:2 β
334:4 β
126:Type
48:Preκ
537:3B-
901::
845:^
788:,
748:.
602:1-
583:2-
564:3-
501:)
392:-(
342:)
313:,
287:.
267:,
239:,
187:,
98:Pg
42:Ma
36:,
30::
891:)
358:)
103:N
93:K
88:J
83:T
78:P
73:C
68:D
63:S
58:O
53:κ
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