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Anomalocaris ("unlike other shrimp", or "abnormal shrimp") is an extinct genus of radiodont, an order of early-diverging stem-group marine arthropods.. It is best known from the type species A. canadensis, found in the Stephen Formation (particularly the Burgess Shale) of British Columbia, Canada.
The type species is Houcaris saron which was originally described as a species of the related genus Anomalocaris. [1] Other possible species include H. magnabasis and H. consimilis . [ 2 ] [ 3 ] The genus Houcaris was established for the two species in 2021 and honors Hou Xianguang, who had discovered and named the type species Anomalocaris ...
He thought this specimen represents a new species of Anomalocaris, so he named it as Anomalocaris pennsylvanica, [2] which makes it the second radiodont species ever described. [3] Numerous specimens have later been referred to this species, but the majority of them were subsequently assigned to different taxa of radiodonts .
There were more than 13,000 lenses in the largest eyes, which were over 3 cm in diameter. The individual lenses were large, with some exceeding 335 μm in diameter, which was possibly an adaptation to seeing in low-light waters. [2] The oral cone was triradial with three large plates, with the plates being studded with numerous tubercules. [1]
Reid has documented the Jewish history of 20 Ohio cities and towns, 15 of which are digitally published on the Columbus Jewish Historical Society's website. Some are still home to active Jewish ...
Based on the remains, scientists estimate that Barinasuchus would have been around 20-25 feet long and weighed 3,800 lbs.. For reference, the largest species of crocodile today, the saltwater ...
Maps of the New World had been produced since the 16th century. The history of cartography of the United States begins in the 18th century, after the declared independence of the original Thirteen Colonies on July 4, 1776, during the American Revolutionary War (1776–1783). Later, Samuel Augustus Mitchell published a map of the United States ...
Incredibly well-preserved fossils of the oldest swimming jellyfish, which lived 505 million years ago, were discovered at a famed fossil site in Canada.