Unit 4 Member

Geology

Formation: San Timoteo

Lithologies: unknown

Paleoenvironments: terrestrial indet. (3)

Age range: base of the Ediacaran to the top of the Blancan or 635.00000 to 1.80000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ediacaran635.0 - 541.0Mexico (10664)
Montezuman520.0 - 515.3Mexico (10682)
Dyeran515.3 - 511.2Canada (Yukon Territory) (156218 156219)
Middle Cambrian509.0 - 497.0USA (Utah) (77269 77275)
Mayan504.5 - 499.5Kazakhstan (Balkhash) (118217 121001)
Franconian497.0 - 485.4USA (Arkansas) (77107)
Abereiddian468.0 - 461.1Kazakhstan (165483 165484)
Chatfieldian453.8 - 451.0Canada (Québec) (197194)
Chatfieldian - Edenian453.8 - 450.2Canada (Quebec) (45286)
Chatfieldian - Edenian453.8 - 450.2Canada (Québec) (192334)
Ashgill449.5 - 443.7Canada (Quebec) (12058 12059 12060 12061 12062 12063)
Capitanian264.28 - 259.51Iran (81124 81128 81129 81130 81131 81132)
Rhaetian208.5 - 201.3Austria (27941 28104 28105 29096 29098 115336 115347 115348 115349 115353 115354 115355)
Late/Upper Campanian83.5 - 70.6Canada (Alberta) (52656 138447 220124 220125 224472 224473)
Late/Upper Campanian83.5 - 70.6Canada (British Columbia) (214452)
Miocene23.03 - 5.333USA (Montana) (18847)
Barstovian16.3 - 12.5USA (Wyoming) (18990)
Blancan4.9 - 1.8USA (California) (19736 19737 19738)