Yegua Formation
Geology
Group: Claiborne
Members: unnamed (28)
Lithologies: not reported (10), claystone (8), "shale" (8), sandstone (5), "mixed carbonate-siliciclastic" (1)
Paleoenvironments: marine indet. (9), terrestrial indet. (1), carbonate indet. (4), marginal marine indet. (5), coastal indet. (9)
Age range: Bartonian or 41.30000 to 38.00000 Ma
Collections
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Middle Eocene | USA (Texas) | (37559) | |
Middle Eocene | Mexico (Tamaulipas) | (43027 43035 43038 43039 43040 43041 43042 43043 43044 43045) | |
Bartonian | USA (Texas) | (77352 91790 92218 93892 93893 93894 93895 93896 93897 93898 98890 98891 99058 205460 205461 205483 205486) |