. Bulletin - United States National Museum. Science. NATIONAL MUSEUM S I LU RIAN COR GENERAL TIME SCALE Western New York and Ontario Centra/and Eastern A/ew York APPALACHIAN VALLEY l/a. Becraft form. ^-ffl Tennessee DEVONIAN (HELDERBERGIAN] Becraft () New Scotland () Coeymans () Keyser () New Scotland formation Coeymans Is. TrrfT TT>s. Keyser Is. - Decker Ferry )^ Manlius Is. . T R^TTTrXTiuU z < CD D \ Manlius () Tonoloway (Md) Wills Creek (Md) Bloomsburg (Fa.) Akron dol. (Bullhead) Bertie wl. Manlius Is. ("fentaculite Is.) Cobleskill Is. T
. Bulletin - United States National Museum. Science. NATIONAL MUSEUM S I LU RIAN COR GENERAL TIME SCALE Western New York and Ontario Centra/and Eastern A/ew York APPALACHIAN VALLEY l/a. Becraft form. ^-ffl Tennessee DEVONIAN (HELDERBERGIAN] Becraft () New Scotland () Coeymans () Keyser () New Scotland formation Coeymans Is. TrrfT TT>s. Keyser Is. - Decker Ferry )^ Manlius Is. . T R^TTTrXTiuU z < CD D \ Manlius () Tonoloway (Md) Wills Creek (Md) Bloomsburg (Fa.) Akron dol. (Bullhead) Bertie wl. Manlius Is. ("fentaculite Is.) Cobleskill Is. Trmrr Bossardville Is. Tonoloway Is. Sneedville Is. Wills Creek Is. Bloomsbur£ ss. SaJina - MSKenzie () (Md) Camillus sb. Syracuse Sh. Vernon &h. Pittsford sh. () () High Falls M-Kenzie form. z < < 0 Shelby dol: ' Racine (Wis) Waukesha (Wis.) Gasport Is. Waldron (Ind.) JP* Laurel (Ind) Decew Is. ? Louisville coral zone Rochester () Rochester shale Irondequoit () Williamson () Wolcott () Sodus (NY) Irondecjuoit Is. Williamson shale Typical Clinton formation Wolcott Is. Sodus shale Clinton group (Keefer ss. near top) (Cacapon member at base) :...., A'. ..'. â ,!.,....', Thorold sandstone Grimsby ss L Cabot Headship Manitoulinbeds-3 Whirlpool ss. J Thorold (Arthropliycus ss) Brassfield (Ky.) Noix (Mo) f-dgewood (Mo) Wbiteoak (Tenn; Girardeau (Mo.). Medina or Tuscarora sandstone Brassfield Is, White Oak ss. Z < Z D LU 2 Elkhorn (Ind.) Whitewater (Ind) Macjuoketa (Iowa) Liberty (Ind.) Queenston shale Waynesville (Ohio) Juniata sandstone and shale Fernvale ( Arnheim (Ohio) Dubuque (Iowa) Sequatchie formation ORD0V1CIA' (CINCINNATIAN) Maysville Oswego sandstone Pulaski formation Oswego sandstone Oswego sandstone (Bald Eagle) Fairview. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly re
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
