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Diagram illustrating the largest (grey) and most conservative (red) size estimates of the Miocene-Pliocene shark Carcharocles megalodon (sometimes Carcharodon or Otodus megalodon) with a whale shark (violet), great white shark (green), and anachronistic human (black) to scale †Otodus megalodon; Otus †Otus asio †Oxyrhina †Oxyura ...
Local marine invertebrates, sharks, and whales were preserved. During the Ice Age, Virginia was home to mastodons. During the late 18th century, Thomas Jefferson directed his scholarly attention to local fossils. Dinosaur tracks were discovered at Oak Hill in the 1920s. The scallop Chesapecten jeffersonius is the Virginia state fossil.
The Saltville Valley today is located in the valley and ridge province of the Appalachian Mountains near southwest Virginia. [1] The valley is shaped like a scalene triangle, and it measures in elevation 1740’/530 m above sea level, 8000’/2.4 km lengthwise, and 2750’/0.84 km at its greatest width.
The Calvert Formation is a geologic formation in Maryland, Virginia, and Delaware. It preserves fossils dating back to the early to middle Miocene epoch of the Neogene period . It is one of the three formations which make up the Calvert Cliffs , all of which are part of the Chesapeake Group .
This list of the Paleozoic life of Virginia contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Virginia and are between 538.8 and 252.17 million years of age.
It is located in the Appalachian Mountains near Duffield in Scott County, Virginia. The Natural Tunnel, which is up to 200 feet (61 m) wide and 80 feet (24 m) high, [ 1 ] began to form more than a million years ago when groundwater bearing carbonic acid percolated through crevices and slowly dissolved limestone and dolomite bedrock .
Diagram illustrating the largest (grey) and most conservative (red) size estimates of the Miocene-Pliocene shark Carcharocles megalodon (sometimes Carcharodon or Otodus megalodon) with a whale shark (violet), great white shark (green), and anachronistic human (black) to scale †Otodus megalodon; Otus †Otus asio †Oxyrhina †Oxyrhina ...
The Thunderbird Archaeological District, near Limeton, Virginia, is an archaeological district described as consisting of "three sites—Thunderbird Site, the Fifty Site, and the Fifty Bog—which provide a stratified cultural sequence spanning Paleo-Indian cultures through the end of Early Archaic times with scattered evidence of later occupation."