Zia Sand Formation

Geology

Members: unnamed (1), basal Piedra Parada (1), Chamisa Mesa (3), lower Chamisa Mesa (3), middle Chamisa Mesa (1), top of the Pilares (1)

Lithologies: not reported (4), claystone (3), sandstone (3)

Paleoenvironments: terrestrial indet. (10), shoreface (3)

Age range: base of the Atdabanian to the top of the Harrisonian or 521.00000 to 18.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Atdabanian521.0 - 516.0Sweden (9878 9879 9880)
Bithynian247.2 - 242.0France (154566)
Harrisonian24.8 - 18.5USA (New Mexico) (17844)
Miocene23.03 - 5.333USA (New Mexico) (19562)
Early/Lower Hemingfordian20.43 - 15.97USA (New Mexico) (19188 19189 19275 19311 19312 19388)
Hemingfordian20.43 - 15.97USA (New Mexico) (19434)
Late/Upper Hemingfordian20.43 - 15.97USA (New Mexico) (19410)