La Caja Formation

Geology

Members: unnamed (4), El Pastor (27), El Verde (58)

Lithologies: not reported (2), claystone (6), "shale" (2), siltstone (1), sandstone (3), marl (41), lime mudstone (1), "limestone" (74)

Paleoenvironments: marine indet. (5), carbonate indet. (82), open shallow subtidal (1), offshore (1)

Age range: base of the Early/Lower Kimmeridgian to the top of the Middle Berriasian or 155.70000 to 140.20000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Kimmeridgian157.3 - 152.1Mexico (Nuevo Leon) (142832)
Early/Lower Kimmeridgian155.7 - 150.8Mexico ( San Luis Potosí ) (192459 192460 192461 192462 192463 192464 192465 192466 192467 192468 192469 192470 192471 192483 192484 192485 192486 192487)
Early/Lower Kimmeridgian155.7 - 150.8Mexico (197973)
Early/Lower Kimmeridgian - Late/Upper Kimmeridgian155.7 - 150.8Mexico (Nuevo León) (142849)
Early/Lower Tithonian150.8 - 145.0Mexico ( San Luis Potosí ) (192488)
Early/Lower Tithonian150.8 - 145.0Mexico (Coahuila) (104859)
Early/Lower Tithonian150.8 - 145.0Mexico (197728 197736 197759 197760 197974 197975 197976)
Late/Upper Tithonian150.8 - 145.0Mexico (Coahuila) (138712)
Late/Upper Tithonian150.8 - 145.0Mexico (197725 197726 197727 197729 197730 197731 197732 197733 197735 197734 197737 197738 197741 197743 197742 197744 197745 197746 197747 197748 197749 197750 197751 197752 197753 197754 197755 197756 197757 197758 197761 197968 197969 197970 197972 197971)
Early/Lower Berriasian - Middle Berriasian145.0 - 140.2Mexico ( San Luis Potosí ) (192472 192473 192474 192475 192476 192477 192478 192479 192480 192481 192482 192489 192490 192491 192492 192493 192494 192495 192496 192497 192498 192499)