Roca Formation

Geology

Group: Malargüe

Members: unnamed (49)

Lithologies: claystone (1), mudstone (17), "shale" (2), siltstone (2), sandstone (18), conglomerate (1), marl (1), packstone (4), grainstone (6), "carbonate" (2)

Paleoenvironments: deep subtidal ramp (1), coastal indet. (2), transition zone/lower shoreface (45), offshore (1)

Age range: base of the Asselian to the top of the Burdigalian or 298.90000 to 15.97000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 295.5USA (Kansas) (887 892 12243 116089)
Wolfcampian - Sakmarian298.9 - 290.1USA (Oklahoma) (24289)
Early/Lower Jurassic201.4 - 174.7Argentina (Santa Cruz) (29393)
Maastrichtian72.1 - 66.0Argentina (Rio Negro) (106099)
Maastrichtian72.1 - 66.0Argentina (Neuquén) (66649 74010 74011 74012 74013 74014 74015 74016 74017 74018 74019 74020 74021 74022 74027 74028 74029 74030 74035 74038 74039 74060 74061 74067 74070 74073 74074 74075 74084 74085 74086 74087 74089 74090 74091)
Maastrichtian72.1 - 66.0Argentina (La Pampa) (5169 106091 106094)
Maastrichtian72.1 - 66.0Argentina (Mendoza) (5177 5179 66656 105860 105861 106077 106078 106079 106080 106083 106085 106086)
Late/Upper Maastrichtian70.6 - 66.0Chile (83616)
Late/Upper Maastrichtian70.6 - 66.0Argentina (Neuquén) (220772)
Late/Upper Maastrichtian70.6 - 66.0Argentina (Mendoza) (106075 110476 110478)
Danian66.0 - 61.6Argentina (Neuquén) (74040 74041 74042 74043 74046 74048 74049 74051 74053 74054 74088 220769 220771 232008 232009 232010 232011 232012 232013 232014 232015 232016 232017 232018 232031 232032)
Danian66.0 - 61.6Argentina (Río Negro) (141238 220766 220767 220768)
Danian66.0 - 61.6Argentina (Neuquen) (5166)
Danian66.0 - 61.6Argentina (La Pampa) (5160 52354 106092 106095 106096 106097 220763 220764 220765)
Danian66.0 - 61.6Argentina (Mendoza) (105865 106084)
Danian66.0 - 61.6Argentina (Rio Negro) (5162 106098 148484 148486 148488 148490 148492 148494 148495 148496 171150)
Ypresian56.0 - 47.8Spain (234378)
Burdigalian20.44 - 15.97Costa Rica (203168 203167)