Laredo Formation

Geology

Group: Claiborne

Members: unnamed (7), Lower (10), Middle (9), Upper (10)

Lithologies: not reported (6), "shale" (10), sandstone (20), "limestone" (10)

Paleoenvironments: marine indet. (35), estuary/bay (1)

Age range: base of the Late/Upper Uintan to the top of the Lutetian or 46.20000 to 41.30000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Lutetian47.8 - 41.3Mexico (Tamaulipas) (99345)
Lutetian - Bartonian47.8 - 38.0Mexico (Tamaulipas) (99349 99350)
Middle Eocene47.8 - 37.71Mexico (Tamaulipas) (42973 42974 42975 42976 42977 42978 42979 42980 42981 42982 42983 42984 42995 42996 42997 42998 42999 43000 43001)
Middle Eocene47.8 - 37.71Mexico (Nuevo Leon) (42985 42986 42987 42988 42989 42990 42991 42992 42993 42994)
Middle Eocene47.8 - 37.71USA (Texas) (91856 99031 99079)
Late/Upper Uintan46.2 - 39.7USA (Texas) (16542)