Pilgrim Formation

Geology

Members: unnamed (14)

Lithologies: not reported (2), grainstone (1), "limestone" (10), "carbonate" (1)

Paleoenvironments: marine indet. (10), shallow subtidal indet. (1), sand shoal (1), lagoonal (1), offshore (1)

Age range: base of the Marjumian to the top of the Steptoean or 504.50000 to 493.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Middle Cambrian509.0 - 497.0USA (Montana) (155748 155749 155750)
Marjumian504.5 - 497.0USA (Montana) (235506 235511)
Steptoean497.0 - 493.5USA (Montana) (8662)
Dresbachian497.0 - 485.4USA (Wyoming-Montana) (233)
Dresbachian497.0 - 485.4USA (Wyoming) (224 225 227)
Dresbachian497.0 - 485.4USA (Montana) (236)
Furongian497.0 - 485.4USA (Montana) (155742 155743 155744)