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This list contains many extinct arthropod genera from the Cambrian Period of the Paleozoic Era. Some trilobites, bradoriids and phosphatocopines may not be included due to the lack of literature on these clades and inaccessibility of many papers describing their genera. This list also provides references for any Wikipedia users who intend to ...
They were among the first fossils to attract widespread attention, and new species are being discovered every year. Fossil hunters look for trilobites and other fossils in Penn Dixie Fossil Park and Nature Preserve. In the United States, the best open-to-the-public collection of trilobites is located in Hamburg, New York. The shale quarry ...
Prehistoric arthropods of the Cambrian period, during the Paleozoic Era. Subcategories. This category has the following 7 subcategories, out of 7 total. ...
Lomankus is significant, as it represents the youngest known definitive megacheiran in the fossil record, as well as the only definitive member of the order from post-Cambrian strata. Although several other genera of post-Cambrian arthropods, including members of the family Enaliktidae , have been proposed as members of megacheira, their ...
The Artiopoda is a grouping of extinct arthropods that includes trilobites and their close relatives. It was erected by Hou and Bergström in 1997 [4] to encompass a wide diversity of arthropods that would traditionally have been assigned to the Trilobitomorpha. Trilobites, in part due to abundance of findings owing to their mineralized ...
The evolutionary ancestry of arthropods dates back to the Cambrian period. The group is generally regarded as monophyletic, and many analyses support the placement of arthropods with cycloneuralians (or their constituent clades) in a superphylum Ecdysozoa. Overall, however, the basal relationships of animals are not yet well resolved. Likewise ...
These new fossils give a clearer picture that O. alata contributed to an evolutionary arms race as its mandibles allowed the animal to break down large structures into smaller pieces and gain ...
A large hymenocarine arthropod that most likely lived a mainly nektonic lifestyle. This creature had about 110 pairs of biramous limbs, the most of any Cambrian aged arthropod. Loricicaris: Arthropoda: Order Hymenocarina. Collins Quarry; A hymenocarine with an elongated, spined abdomen. It was found in the Kicking Horse Shale Member of the ...