Cook Mountain Formation

Geology
Age range: base of the Ypresian to the top of the Late/Upper Eocene or 56.00000 to 33.90000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 47.8USA (Texas) (98746)
Eocene56.0 - 33.9USA (Missouri) (231934)
Eocene56.0 - 33.9USA (Texas) (142845 143051)
Lutetian47.8 - 41.3USA (Louisiana) (1454 1455)
Lutetian47.8 - 41.3USA (Texas) (1449 1450 1451 1452 1453 205356)
Lutetian47.8 - 41.3USA (Alabama) (1443 1444)
Lutetian - Bartonian47.8 - 38.0USA (Louisiana) (87145 87175)
Middle Eocene47.8 - 37.71USA (Texas) (4899 84143 84144 142963)
Bartonian41.3 - 38.0Mexico (Nuevo Leon) (111220)
Bartonian41.3 - 38.0USA (Louisiana) (32903 44405 44408 44409 44410 44517 44518 90475 90631 90703 91114 91116 91888 92272 92273 92275 92280 92306 92346 92347 92348 92350 92356 92372 92373 92381 92386 92388 98647 98645 98648 98690 98698 98699 98769 98786 98787 98790 98788 98912 98914 98928 98935 98936 98938 98939 98940 98941 98942 98943 98944 98945 98946 98947 98948 98951 98952 98953 106488 106489 106490 106917 106918 106919 106950 107646)
Bartonian41.3 - 38.0USA (Mississippi) (2444 2436 2437 2438 2446 2449 2451 2434 2435 80887 83981 90642 90707 90708 90709 91050 92171 92172 92174 92175 98453 98462 98463 98467 98468 98469 98471 98472 98493 98495 98500 98501 98502 98512 98513 98571 98572 99671 99672 99674 99722 99734 99735 99736 99754 99755 99756 99757 100141 100142 101175 101176 101177 101178 101179 101180 101182 101187 101188 101189 101190 119431 184807 184808)
Bartonian41.3 - 38.0USA (Florida) (99204)
Bartonian41.3 - 38.0USA (Alabama) (91886 92033 92035 92036 92253 92267 98263 98306 98310 98357 98358 98359 98369 205516)
Bartonian41.3 - 38.0USA (Arkansas) (99172)
Bartonian41.3 - 38.0Mexico (Tamaulipas) (91880)
Bartonian41.3 - 38.0USA (Texas) (32921 87139 92237 90454 90658 90816 90817 90819 90884 90885 90886 91128 91771 91796 91797 91798 91799 91809 91810 91814 91816 91838 91839 91840 91857 91895 92201 92202 92204 92206 92207 92208 92210 92211 92212 92213 92214 92220 92238 92240 92248 92385 98712 98729 98745 98747 98749 98756 98808 98832 98833 98864 98865 98868 98870 98872 98883 98884 98885 98886 98894 98898 99020 99026 99027 99035 99036 99040 99047 99060 99061 99064 99066 99067 99068 99069 99072 99075 99078 99253 106486 106487 106491 135774 176783 205222 205264 205265 205266 205267 205271 205410 205411 205412 205413 205414 205415 205422 205423 205424 205425 205426 205429 205430 205432 205433 205435 205437 205447 205448 205456 205465 205473 205477 205480 205481 205482 205484 205485 205515 205519 205523 205531)
Priabonian38.0 - 33.9USA (Texas) (49876)
Late/Upper Eocene37.2 - 33.9USA (Texas) (142985)