Niobrara Formation

Geology
Age range: base of the Late/Upper Turonian to the top of the Early/Lower Campanian or 93.50000 to 70.60000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Turonian93.9 - 89.8USA (New Mexico) (82213 82214 82215 82216 82217 82218 82219 82220 82221 82222 82223 82224)
Turonian - Santonian93.9 - 83.6USA (Kansas) (31690 38720 38721 85963 107339)
Late/Upper Turonian93.5 - 89.3USA (Colorado) (87846 179210)
Late/Upper Turonian93.5 - 89.3Canada (Saskatchewan) (23370)
Late/Upper Turonian93.5 - 89.3USA (New Mexico) (82259 82281 87845)
Late/Upper Turonian - Early/Lower Coniacian93.5 - 85.8USA (Kansas) (213411 213412)
Coniacian89.8 - 86.3USA (New Mexico) (82244 82245 82246 82247 82249 82250 82251)
Coniacian89.8 - 86.3Canada (Saskatchewan) (23369)
Coniacian89.8 - 86.3USA (Nebraska) (88019)
Coniacian89.8 - 86.3USA (Kansas) (85282)
Coniacian - Santonian89.8 - 83.6USA (Colorado) (227704)
Coniacian - Santonian89.8 - 83.6USA (Kansas) (81970 82002 84456 84457 84458 84698 85277 85278 85294 228157)
Coniacian - Santonian89.8 - 83.6USA (South Dakota) (107782)
Early/Lower Coniacian89.3 - 85.8USA (Colorado) (74304)
Early/Lower Coniacian89.3 - 85.8USA (New Mexico) (87847)
Early/Lower Coniacian89.3 - 85.8USA (Kansas) (62792 117844 213405 213545 213546 213547 213548 213549 213550 213551 213552 213553 213554 213555 213556 213557)
Late/Upper Coniacian89.3 - 85.8USA (New Mexico) (100220 82248)
Late/Upper Coniacian89.3 - 85.8USA (Kansas) (118156 118151 118152 34700 49040 67200 74174 84459 99390 99391 99393 99395 99396 99397 106063 118153 118154 118155 118157 118159 118160 118161 118162 118163 210348 210349 212963 213409 213413 215763 215764 215770 215771)
Late/Upper Coniacian89.3 - 85.8USA (Colorado) (74310 74311 74312 74313 74314 74316 74317 74318 74320 74321)
Middle Coniacian89.3 - 85.8USA (Colorado) (74305 87851)
Early/Lower Coniacian - Santonian89.3 - 83.6USA (Kansas) (13301)
Late/Upper Coniacian - Santonian89.3 - 83.6USA (Kansas) (28369 85238 93219 93390 117842 117847 117856 118879 132511 174624 203740 229117 229118)
Late/Upper Coniacian - Early/Lower Santonian89.3 - 83.5USA (Kansas) (93380 93381 93383 93384 93388 101104 123571 123572 123574 215772)
Late/Upper Coniacian - Middle Santonian89.3 - 83.5USA (Kansas) (189448)
Late/Upper Coniacian - Early/Lower Campanian89.3 - 70.6USA (Kansas) (232231)
Santonian - Coniacian86.3 - 86.3USA (Kansas) (129833)
Santonian - Coniacian86.3 - 86.3USA (Wyoming) (33436)
Santonian86.3 - 83.6USA (South Dakota) (160520)
Santonian86.3 - 83.6Canada (Manitoba) (107803)
Santonian86.3 - 83.6USA (Colorado) (87853 97589 107708 160521 160522 179211)
Santonian86.3 - 83.6USA (New Mexico) (82261 82264 82268 82269 82271 82272 87850)
Santonian86.3 - 83.6USA (North Dakota) (107427)
Santonian86.3 - 83.6USA (Kansas) (25071 84697 85276 93217 93225 93220 93221 93234 93233 93386 93391 93422 94652 99383 99384 99385 116624 117841 117843 117846 117851 118183 118875 123577 160519 167919 188486 188487 191649 203742 210347 210350 220909 221063 221064 221066 221077 221103)
Santonian86.3 - 83.6USA (Nebraska) (193536)
Early/Lower Santonian85.8 - 83.5USA (Colorado) (74322 74323 74324 74325 87852 87854)
Early/Lower Santonian85.8 - 83.5USA (Kansas) (215769)
Late/Upper Santonian85.8 - 83.5USA (South Dakota) (194130)
Late/Upper Santonian85.8 - 83.5USA (Kansas) (109698 93387 85284 93218 93389 118338 132510 188488 203741 206749 210346 212962 212995 213523 213529 213530 231925)
Late/Upper Santonian85.8 - 83.5USA (Colorado) (74331 87855)
Middle Santonian85.8 - 83.5USA (Kansas) (49044 49045 103989 231052 231053 231054 231055 231056 231057 231058 231059)
Middle Santonian85.8 - 83.5USA (Colorado) (74326 74327 74328 74329 74330)
Middle Santonian85.8 - 83.5USA (New Mexico) (87848 87849 100169)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (Colorado) (234105)