Tegama Group

Geology

Formations: unnamed (6), Echkar (4), Elrhaz (20)

Lithologies: not reported (11), "siliciclastic" (1), claystone (4), sandstone (16)

Paleoenvironments: terrestrial indet. (25), deltaic indet. (1), fluvial indet. (1), "channel" (2), crevasse splay (1)

Age range: base of the Late/Upper Aptian to the top of the Early/Lower Cenomanian or 119.57000 to 93.90000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Barremian - Early/Lower Cenomanian125.77 - 93.9Niger (Agadez) (25356 25357 75065 141305)
Aptian121.4 - 113.2Niger (Agadez) (25194 37200 182953)
Aptian - Albian121.4 - 100.5Niger (Agadez) (59640 60029 81086 81087 92629 92630 118039 133668)
Late/Upper Aptian119.57 - 113.2Niger (Agadez) (77189)
Late/Upper Aptian - Early/Lower Albian119.57 - 110.1Niger (Agadez) (114110)
Albian113.2 - 100.5Niger (Agadez) (25195 25196 25197 28569 203180 228823 228824)
Early/Lower Albian - Early/Lower Cenomanian113.2 - 93.9Niger (Tahoua) (25219 25220)
Late/Upper Albian - Early/Lower Cenomanian106.3 - 93.9Niger (Agadez) (25221)
Early/Lower Cenomanian100.5 - 93.9Niger (Zinder) (228906)
Early/Lower Cenomanian100.5 - 93.9Niger (Agadez) (58577 230997)