Oregonia Member, Formation
Geology
Group: Richmondian
Formation: Arnheim
Members: unnamed (35)
Lithologies: mudstone (35), packstone (35)
Paleoenvironments: marine indet. (1), open shallow subtidal (35)
Age range: Richmondian or 449.60000 to 445.50000 Ma
Collections
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Ordovician | USA (Kentucky) | (75167) | |
Richmondian | USA (Indiana) | (72427 72428 72429 72469 72470 72471) | |
Richmondian | USA (Ohio) | (72540 72812 72813 72845 72846 72847 72848 72849 72850 72851 72924 72925 72964 72965 72966 72967 73036 73037 73038 73039 73040 73120 73121 73125) | |
Richmondian | USA (Kentucky) | (73115 73116 73117 73118 73119) |