List of fossiliferous stratigraphic units in Oregon explained

This article contains a list of fossil-bearing stratigraphic units in the state of Oregon, U.S.

Lists of fossiliferous stratigraphic units

Cenozoic

Group Formation Period Notes
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Late Eocene-Early Miocene
(Duchesnean-Hemingfordian)
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Chattian-Burdigalian
(Arikareean-Hemingfordian)
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align=center [30] [31] [32]
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Rupelian (Whitneyan) align=center [36] [37]
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Mesozoic

Group Formation Period Notes
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align=center [78] [79]
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align=center [85] [86]
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Paleozoic

See also

Notes and References

  1. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Elk%20River&group_formation_member=Elk%20River Elk River Formation
  2. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Port%20Orford&group_formation_member=Port%20Orford Port Orford Formation
  3. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Merced&group_formation_member=Merced Merced Formation
  4. https://ngmdb.usgs.gov/Geolex/Units/Merced_13684.html Merced Formation
  5. https://ngmdb.usgs.gov/Geolex/UnitRefs/MercedRefs_13684.html Merced Formation publications
  6. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Empire&group_formation_member=Empire Empire Formation
  7. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Alkali%20Canyon&group_formation_member=Alkali%20Canyon Alkali Canyon Formation
  8. https://ngmdb.usgs.gov/Geolex/Units/AlkaliCanyon_4537.html Alkali Canyon Formation
  9. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Chalk%20Butte&group_formation_member=Chalk%20Butte Chalk Butte Formation
  10. https://ngmdb.usgs.gov/Geolex/Units/ChalkButte_4967.html Chalk Butte Formation
  11. https://ngmdb.usgs.gov/Geolex/UnitRefs/ChalkButteRefs_4967.html Chalk Butte Formation publications
  12. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Drewsey&group_formation_member=Drewsey Drewsey Formation
  13. https://ngmdb.usgs.gov/Geolex/Units/Drewsey_15116.html Drewsey Formation
  14. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=McKay&group_formation_member=McKay McKay Formation
  15. https://ngmdb.usgs.gov/Geolex/Units/McKay_6017.html McKay Formation
  16. https://ngmdb.usgs.gov/Geolex/UnitRefs/McKayRefs_6017.html McKay Formation publications
  17. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Juntura&group_formation_member=Juntura Juntura Formation
  18. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=The%20Dalles&group_formation_member=The%20Dalles The Dalles Formation
  19. https://ngmdb.usgs.gov/Geolex/Units/Dalles_5133.html The Dalles Formation
  20. https://ngmdb.usgs.gov/Geolex/UnitRefs/DallesRefs_5133.html The Dalles Formation publications
  21. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Butte%20Creek&group_formation_member=Butte%20Creek Butte Creek Formation
  22. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Deer%20Butte&group_formation_member=Deer%20Butte Deer Butte Formation
  23. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Sucker%20Creek&group_formation_member=Sucker%20Creek Sucker Creek Formation
  24. https://ngmdb.usgs.gov/Geolex/Units/SuccorCreek_12012.html Sucker Creek Formation
  25. https://ngmdb.usgs.gov/Geolex/UnitRefs/SuccorCreekRefs_12012.html Sucker Creek Formation
  26. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Mascall&group_formation_member=Mascall Mascall Formation
  27. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=John%20Day&group_formation_member=John%20Day John Day Formation
  28. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORTsfj%3B0 John Day Formation
  29. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Nye&group_formation_member=Nye Nye Formation
  30. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Astoria&group_formation_member=Astoria Astoria Group
  31. https://ngmdb.usgs.gov/Geolex/Units/Astoria_4613.html Astoria Shale
  32. https://ngmdb.usgs.gov/Geolex/Units/Astoria_16170.html Astoria
  33. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Scotts%20Mills&group_formation_member=Scotts%20Mills Scotts Mills Formation
  34. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Yaquina&group_formation_member=Yaquina Yaquina Formation
  35. https://ngmdb.usgs.gov/Geolex/Units/Yaquina_14939.html Yaquina Formation
  36. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Alsea&group_formation_member=Alsea Alsea Formation
  37. https://ngmdb.usgs.gov/Geolex/Units/Alsea_4541.html Alsea Formation
  38. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Fisher&group_formation_member=Fisher Fisher Formation
  39. https://ngmdb.usgs.gov/Geolex/Units/Fisher_16389.html Fisher Formation
  40. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORTfe%3B0 Fisher & Eugene Formations
  41. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Mehama&group_formation_member=Mehama Mehama Formation
  42. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORTu%3B0 Undifferentiated tuffaceous sedimentary rocks, tuffs, and basalt - Mehama Formation
  43. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Pittsburg%20Bluff&group_formation_member=Pittsburg%20Bluff Pittsburg Bluff Formation
  44. https://www.mindat.org/paleo_loc.php?id=35169 Pittsburg Bluff Formation
  45. https://www.mindat.org/paleo_loc.php?id=27769 Pittsburg Bluff Formation
  46. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Keasey&group_formation_member=Keasey Keasey Formation
  47. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Eugene&group_formation_member=Eugene Eugene Formation
  48. https://ngmdb.usgs.gov/Geolex/Units/Eugene_12863.html Eugene Formation
  49. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Nestucca&group_formation_member=Nestucca Nestucca Formation
  50. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Spencer&group_formation_member=Spencer Spencer Formation
  51. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Coaledo&group_formation_member=Coaledo Coaledo Formation
  52. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Cowlitz&group_formation_member=Cowlitz Cowlitz Formation
  53. https://ngmdb.usgs.gov/Geolex/Units/Cowlitz_5098.html Cowlitz Formation
  54. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Clarno&group_formation_member=Clarno Clarno Formation
  55. https://ngmdb.usgs.gov/Geolex/Units/Clarno_5034.html Clarno Formation
  56. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Tyee&group_formation_member=Tyee Tyee Formation
  57. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORTt%3B0 Tyee Formation
  58. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Umpqua&formation=Camas%20Valley&group_formation_member=Camas%20Valley Camas Valley Formation
  59. https://ngmdb.usgs.gov/Geolex/Units/Umpqua_12176.html Umpqua Group
  60. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Umpqua&formation=Flournoy&group_formation_member=Flournoy Flournoy Formation
  61. https://ngmdb.usgs.gov/Geolex/Units/Flournoy_5336.html Flournoy Formation
  62. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Lookingglass&group_formation_member=Lookingglass Lookingglass Formation
  63. https://ngmdb.usgs.gov/Geolex/Units/Lookingglass_5924.html Lookingglass Formation
  64. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Umpqua&formation=Roseburg&group_formation_member=Roseburg Roseburg Formation
  65. https://ngmdb.usgs.gov/Geolex/Units/Roseburg_11720.html Roseburg Formation
  66. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=White%20Tail%20Ridge&group_formation_member=White%20Tail%20Ridge White Tail Ridge Formation
  67. https://www.mindat.org/paleo_collection.php?col=52274 White Tail Ridge Formation
  68. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Umpqua&formation=Tenmile&group_formation_member=Tenmile Tenmile Formation
  69. https://ngmdb.usgs.gov/Geolex/Units/Tenmile_12072.html Tenmile Formation
  70. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Umpqua&formation=Bushnell%20Rock&group_formation_member=Bushnell%20Rock Bushnell Rock Formation
  71. https://ngmdb.usgs.gov/Geolex/Units/BushnellRock_4858.html Bushnell Rock Formation
  72. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Yamhill&group_formation_member=Yamhill Yamhill Formation
  73. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORTy%3B0 Yamhill Formation
  74. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Siletz%20River%20Volcanics%20&group_formation_member=Siletz%20River%20Volcanics%20 Siletz River Volcanics
  75. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORTsr%3B0 Siletz River Volcanics
  76. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Cape%20Sebastian%20Sandstone&group_formation_member=Cape%20Sebastian%20Sandstone Cape Sebastian Sandstone
  77. https://ngmdb.usgs.gov/Geolex/Units/CapeSebastian_4918.html Cape Sebastian Sandstone
  78. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Chico&group_formation_member=Chico Chico Formation
  79. https://ngmdb.usgs.gov/Geolex/Units/Chico_16783.html Chico Formation
  80. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Hudspeth&group_formation_member=Hudspeth Hudspeth Formation
  81. https://ngmdb.usgs.gov/Geolex/Units/Hudspeth_5594.html Hudspeth Formation
  82. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Days%20Creek&group_formation_member=Days%20Creek Days Creek Formation
  83. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Day%20Creek%20&group_formation_member=Day%20Creek%20 Day Creek Formation
  84. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Myrtle&group_formation_member=Myrtle Myrtle Formation
  85. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Myrtle&formation=Dotham&group_formation_member=Dotham Dotham Formation
  86. https://ngmdb.usgs.gov/Geolex/Units/Dothan_16341.html Dothan Formation
  87. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Otter%20Point&group_formation_member=Otter%20Point Otter Point Formation
  88. https://ngmdb.usgs.gov/Geolex/Units/OtterPoint_11504.html Otter Point Formation
  89. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Coon%20Hollow&group_formation_member=Coon%20Hollow Coon Hollow Formation
  90. https://ngmdb.usgs.gov/Geolex/Units/CoonHollow_7695.html Coon Hollow Formation
  91. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Lonesome&group_formation_member=Lonesome Lonesome Formation
  92. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORJs2%3B0 Lonesome Formation
  93. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Weberg&group_formation_member=Weberg Weberg Formation
  94. https://ngmdb.usgs.gov/Geolex/Units/Weberg_14835.html Weberg Member
  95. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Snowshoe&group_formation_member=Snowshoe Snowshoe Formation
  96. https://ngmdb.usgs.gov/Geolex/Units/Snowshoe_14518.html Snowshoe Formation
  97. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Hyde&group_formation_member=Hyde Hyde Formation
  98. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Nicely&group_formation_member=Nicely Nicely Formation
  99. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Mowich&formation=Robertson&group_formation_member=Robertson Robertson Formation
  100. https://ngmdb.usgs.gov/Geolex/Units/Robertson_14300.html Robertson Formation
  101. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Suplee&group_formation_member=Suplee Suplee Formation
  102. https://ngmdb.usgs.gov/Geolex/Units/Mowich_13827.html Mowich Group
  103. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Graylock&group_formation_member=Graylock Graylock Formation
  104. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Hurwal&group_formation_member=Hurwal Hurwal Formation
  105. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Martin%20Bridge&group_formation_member=Martin%20Bridge Martin Bridge Formation
  106. https://ngmdb.usgs.gov/Geolex/Units/MartinBridge_8739.html Martin Bridge Formation
  107. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Vester&group_formation_member=Vester Vester Formation
  108. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Rail%20Cabin%20Argillite&group_formation_member=Rail%20Cabin%20Argillite Rail Cabin Argillite
  109. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Brisbois&group_formation_member=Brisbois Brisbois Formation
  110. https://ngmdb.usgs.gov/Geolex/Units/Brisbois_12428.html Brisbois Member
  111. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Aldrich%20Mountains&formation=Fields%20Creek&group_formation_member=Fields%20Creek Fields Creek Formation
  112. https://ngmdb.usgs.gov/Geolex/Units/FieldsCreek_5321.html Fields Creek Formation
  113. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=Coyote%20Butte&group_formation_member=Coyote%20Butte Coyote Butte Formation
  114. https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ORTRPZs2%3B0 Coyote Butte Formation