Definition of Darriwilian. Meaning of Darriwilian. Synonyms of Darriwilian

- The Darriwilian is the upper stage of the Middle Ordovician. It is preceded by the Dapingian and succeeded by the Upper Ordovician Sandbian Stage. The...
- Floian, all of the Dapingian and the early Darriwilian. The Llanvirn corresponds to the late Darriwilian. The Caradoc covers the Sandbian and the first...
- volcanic rocks that were deposited 466 to 465 million years ago during the Darriwilian stage of the Middle Ordovician epoch. Rhyolite flows, breccias and hyaloclastics...
- Tetragraptidae is an extinct family of graptolites from the Floian to Darriwilian epochs of the Ordovician Period. List of genera from Maletz (2014): †Corymbograptus...
- Shale (originally the Winneshiek Lagerstätte) is a Middle Ordovician (Darriwilian-age) geological formation in Iowa. The formation is restricted to the...
- in Lake Superior, and Ames crater in Oklahoma. The Middle Ordovician (Darriwilian) Winneshiek Lagerstätte sediments that filled in the crater contained...
- bicornis, but its age could be Llandeilo or Trentonian (earliest to latest Darriwilian, 450 to 465 million years ago). "Austin Glen Formation". USGS. Bock,...
- youngae, have been discovered in deposits of the Middle Ordovician period (Darriwilian epoch) in Iowa, in the United States. The name of the genus is derived...
- Rafinesquina is an extinct genus of large brachiopod that existed from the Darriwilian to the Ludlow epoch. The genus was named in honor of polymath Constantine...
- & Sugiyama, 1930 [Middle Ordovician (Darriwilian)] Thamnobeatricea Raymond, 1931 [Middle Ordovician (Darriwilian) – Upper Ordovician (Katian)] Family...