-
Hirnantian Cincinnatian Gamachian Bolindian Hirnantian Katian Rawtheyan Richmondian Chientangkiangian Cautleyan Pusgillian Maysvillian Eastonian Neichianshanian...
- (Miller) 1882
Upper Ordovician ("
Richmondian") A
fairly uncommon but
widespread American species found throughout "
Richmondian"
strata in Ohio, Kentucky, Indiana...
- Leipers, Fernvale, and Arnheim. The most
recent stage is the
Richmondian. The
Richmondian contains: Bull Fork, Saluda, Whitewater,
Drakes and
parts of...
-
Formation is a
geological formation of
Upper Ordovician age (Maysvillian to
Richmondian Stage),
which outcrops in Ontario,
Canada (along the
northern and eastern...
- Nevada. It
preserves fossils dating back to the Dapingian-Katian (Ibexian-
Richmondian in the
regional stratigraphy)
stages of the
Ordovician period. Wikimedia...
- K(3):1-519 R. C. Frey. 1981.
Narthecoceras (Cephalopoda) from the
Upper Ordovician (
Richmondian) of
Southwest Ohio.
Journal of
Paleontology 55(6):1217-1224...
- to life in an
attempt to
bring forth revenge for his
record of
oldest Richmondian being broken. They say that he
still wanders the
alleys of
Richmond to...
-
above the
mouth of
Silver cr****, east of Dunlapsville, Late
Ordovician (
Richmondian)
Waynesville Formation of Indiana. The
species is also
recorded from...
-
Rhuddanian Hirnantian Katian (
Richmondian)
Aleqatsiaq Fjord Formation Rhuddanian Hirnantian (Gamachian)
Katian (
Richmondian) Cape
Calhoun Formation Cautleyan...
- 1971
Rhyacian 2,300 2,050
period Proterozoic ICS
Cowie 6 B****et, 1989
Richmondian 449 445.6 ± 1.5 age
Ordovician North America Winc**** &
Ulrich 1897 Riochican...
