Definition of Whiterockian. Meaning of Whiterockian. Synonyms of Whiterockian

- The Whiterockian, often referred to simply as the Whiterock, is an earliest or lowermost stage of the Middle Ordovician. Although the Whiterockian or Whiterock...
- Mohawkian Chatfieldian Sandbian Burrellian Gisbornian Turinian Aurelucian Whiterockian Middle Ordovician Darriwilian Llanvirn Llandeilo Darriwilian Darriwilian...
- Georginidae but don't become well established until the beginning of the early Whiterockian Stage (Dapingian) of the Middle Ordovician (Flower 1868,1976) The Georginidae...
- reticulatus and R. turgidus from the Whiterockian of Canada, R. vespertina from the Ordovician and Whiterockian of the United States and Norway, and a...
- Spain, Sweden, the United Kingdom, United States; Llandeilo of China; Whiterockian of United States; Dawan of China; Arenig of China. Strophomena amoena...
- Najaceras is a genus of straight, slender endocerid known only from the Whiterockian age Oil Cr**** Limestone of Oklahoma, introduced and named by Rousseau...
- Conodonts Paraprioniodus costatus and Leptochirognathus quadratus indicate Whiterockian age. Unconformities separate this formation from the underlying Powell...
- phragmocones, and siphuncles. Williamsoceras and Cacheoceras are from the Whiterockian stage (lower lower Middle Ordovian) of Utah. Perkinsoceras, which appeared...
- "Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec" (abs). Cambridge University Press. Retrieved...
- named and described (Flower 1968) from the Garden City limestone of Whiterockian age near Logan and northern Utah, including the genotype Williamsoceras...