Search results
Results From The WOW.Com Content Network
The location of the state of Arkansas. Paleontology in Arkansas refers to paleontological research occurring within or conducted by people from the U.S. state of Arkansas. The fossil record of Arkansas spans from the Ordovician to the Eocene. [1] Nearly all of the state's fossils have come from ancient invertebrate life. [1]
This list of the Paleozoic life of Arkansas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Arkansas and are between 541 and 252.17 million years of age.
Fossil of the Middle Ordovician-Silurian trilobite Sphaerexochus †Sphaerexochus †Spirifer †Stearoceras †Stigmaria †Stroboceras †Sutherlandia †Tesuquea †Triboloceras – tentative report †Tripteroceroides – tentative report; Trypanites †Tylonautilus †Valhallites †Wilkingia †Zia
This article contains a list of fossil-bearing stratigraphic units in the state of Arkansas, U.S. Sites. Group or Formation Period
The Everton Formation is a geologic formation in northern Arkansas through Missouri, Illinois and Indiana that dates to the middle Ordovician Period. [3] It was named by Ulrich (1907) for exposures found around Everton, Arkansas. Fossils of Conodonts Paraprioniodus costatus and Leptochirognathus quadratus indicate Whiterockian age. [4]
The Ozan Formation is a geologic formation in Arkansas, Oklahoma [1] and Texas. It preserves fossils dating back to the ... Another view of the same location (c. 1902
They could once be found all throughout Arkansas, but had more-or-less vanished by 1920, the Commission said, but there have been 23 confirmed sightings in the state beginning in 2010.
Oil exploration began in earnest in 1916 with an unsuccessful well east of El Dorado, in Union County (which at the time was known as Urbana County). A week after Samuel S. Hunter found modest amounts of oil in the Hunter No. 1 well near Stephens, Arkansas, the Constantin Oil and Refining Company found large amounts of oil and natural gas. Soon ...