1. An age in the Early Permian Epoch, preceded by the Stephanian, Gzelian, and Noginskian (Carboniferous), followed by the Sakmarian, and with an initial boundary (the Carbo–Permian boundary) dated at 290 Ma ( Harland et al., 1989).
2. The name of the corresponding eastern European stage which, because of lower boundary uncertainties, has also been considered as part of the Carboniferous system. It is roughly contemporaneous with the lower Wolfcampian and lower Rotliegende (western Europe), and with the lower Somoholoan (New Zealand). See also SAKMARIAN.
"Asselian." A Dictionary of Earth Sciences. . Encyclopedia.com. (March 18, 2019). https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/asselian
"Asselian." A Dictionary of Earth Sciences. . Retrieved March 18, 2019 from Encyclopedia.com: https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/asselian
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
American Psychological Association
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.