Richmondian Group

Geology

Formations: unnamed (34), Arnheim (27), Dillsboro (2), Elkhorn (10), Liberty (16), Lower Whitewater (4), Lower Whitewater / Elkhorn (1), Saluda (1), Upper Whitewater (4), Waynesville (55), Whitewater (20)

Lithologies: not reported (21), "limestone" (2)

Paleoenvironments: marine indet. (174)

Age range: Richmondian or 449.60000 to 445.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Ordovician458.2 - 443.1USA (Kentucky) (75153 75154 75167 76176 76177 76178 76179 76182 76188 76190 76218 76225 76229 76232 76239 76243 76245)
Late/Upper Ordovician458.2 - 443.1USA (Ohio) (75106 75108 75156 75158 75159 75160 75168 75462 76238 76252 76254 76255 76256 77500 77501 77502 77504 77506 77507 77509 77511 77512 77540 77545 77546 77547 77553 77560 77567 77571 77576 77822 77830 77833 77893 77967 77969 77970 77971 78116 78117 78146 78154 78155 78157 78158 78159 78160 78191 78222 78227 78228 78229 78295 78296 78298 78299 78360 78389 78390 78392 78393 78506 78507 78508 78603 78604 78606 78634 78635 78636 78701 78702 78703 78724 78725 78726 78727 78728 78803 78806 78807 78821 78823 78824 78825 78826 78827 78828 78829 78883 78884 78887 78889 78892)
Late/Upper Ordovician458.2 - 443.1USA (Indiana) (75110 75161 75165 75166 76259 77497 77554 77636 77638 77639 77641 77642 77716 77719 77720 77722 77759 77895 77965 78115 78118 78151 78156 78361 78387 78388 78391 78505 78509 78601 78602 78607 78637 78820 78885 78888 78890 78891 78899)
Richmondian449.6 - 445.5USA (Ohio) (75112 75114 75115 77543 77544 78297 78639 78804 173168)
Richmondian449.6 - 445.5USA (Indiana) (75107 75109 77643 77644 77717 77718 77835 77966 78893 78894 78896 101552 155718 194134)