Hartland Shale Member

Geology

Group: Colorado

Formation: Greenhorn Limestone

Lithologies: not reported (1), "shale" (4), chalk (1), "limestone" (1)

Paleoenvironments: marine indet. (2), deep subtidal ramp (1), offshore ramp (1), offshore (3)

Age range: base of the Late/Upper Cenomanian to the top of the Early/Lower Turonian or 99.60000 to 89.30000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Cenomanian100.5 - 93.9USA (Kansas) (44280)
Late/Upper Cenomanian99.6 - 93.5USA (New Mexico) (44245)
Late/Upper Cenomanian99.6 - 93.5USA (South Dakota) (44286)
Late/Upper Cenomanian99.6 - 93.5USA (Colorado) (132505 177116)
Late/Upper Cenomanian99.6 - 93.5USA (Kansas) (106182)
Early/Lower Turonian93.5 - 89.3USA (Kansas) (213404)