LEONARDIAN STAGE (255-269 MYA)

NORTH AMERICA

UNITED STATES OF AMERICA

KANSAS

In general

DICKENSON COUNTY

OKLAHOMA

In general

CLEVELAND COUNTY

COMANCHE COUNTY

COTTON COUNTY

GARVIN COUNTY

GRANT COUNTY

KAY COUNTY

LOGAN COUNTY

NOBLE COUNTY

OKLAHOMA COUNTY

TILLMAN COUNTY

TEXAS

In general

ARCHER COUNTY

BAYLOR COUNTY

FOARD COUNTY

HASKELL COUNTY

KNOX COUNTY

TAYLOR COUNTY

VALE COUNTY

VERNON COUNTY

WICHITA COUNTY

WILLBARGER COUNTY