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No Precambrian fossils are known from Virginia. [1] The geologic column in Virginia begins at the Cambrian and spans to the Quaternary. [2] Although present, the state's Cambrian rocks preserve very few fossils and no documented individual deposit has proven a fertile collecting ground. [3] The state was covered by a warm shallow sea at the ...
In all land plants a disc-like structure called a phragmoplast forms where the cell will divide, a trait only found in the land plants in the streptophyte lineage, some species within their relatives Coleochaetales, Charales and Zygnematales, as well as within subaerial species of the algae order Trentepohliales, and appears to be essential in ...
Restoration of the Cambrian-Middle Devonian nautiloid cephalopod Cyrtoceras †Cyrtoceras †Cyrtospirifer †Cystodictya †Cystodictya lineata †Dakeoceras †Dalmanites – or unidentified comparable form †Diplograptus †Echinosphaerites †Edmondia †Encrinuroides †Eophacops †Epiphyton
The Cambrian (/ ˈ k æ m b r i. ə n, ˈ k eɪ m-/ KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. [5] The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordovician Period 486.85 Ma.
The current Commissioner is Joseph W. Guthrie, who was appointed on January 15, 2022. He is Virginia's 18th Commissioner of Agriculture and Consumer Services. Guthrie is a sixth generation Virginia farmer, who owned and operated a beef cattle and hay farm in Pulaski County on farmland that has been in his family since 1795.
This category contains the native flora of Virginia as defined by the World Geographical Scheme for Recording Plant Distributions. Taxa of the lowest rank are always included; taxa of higher ranks (e.g. genus) are only included if monotypic or endemic. Include taxa here that are endemic or have restricted distributions (e.g. only a few countries).
An ammonia leak at a commercial food preparation facility in Virginia sent 33 people to the hospital, authorities said Thursday. The leak at the Cuisine Solutions plant in Sterling on Wednesday ...
In 1768, in the 12th volume of Systema Naturae, he included G. sagittarius and G. scalaris, respectively a possible plant fossil and a possible graptolite. In his 1751 Skånska Resa , he included a figure of a "fossil or graptolite of a strange kind" currently thought to be a type of Climacograptus (a genus of biserial graptolites).