Struszia Harrisoni
''Struszia'' is a genus of fossil trilobites from the Silurian period, erected in 1993 and named after paleontologist Desmond L. Strusz. Species The genus contains 16 species, several of them named after members of The Beatles or people connected to the band: * ''Struszia concomitans'' (Přibyl & Vaněk, 1962) * ''Struszia dimitrovi'' (Perry & Chatterton, 1979) * ''Struszia epsteini'' Adrain & Edgecombe, 1997 (named after Brian Epstein) * '' Struszia harrisoni'' Edgecombe & Chatterton, 1993 (named after George Harrison) * '' Struszia hilarula'' (Kegel, 1927) * '' Struszia indianensis'' (Kindle & Breger, 1904) * '' Struszia martini'' Adrain & Edgecombe, 1997 (named after George Martin) * '' Struszia mccartneyi'' Edgecombe & Chatterton, 1993 (named after Paul McCartney) * ''Struszia obtusa'' (Angelin, 1851) * ''Struszia onoae'' Adrain & Edgecombe, 1997 (named after Yoko Ono) * '' Struszia petebesti'' Adrain & Edgecombe, 1997 (named after Pete Best) * '' Struszia ramskoeldi'' ( ...
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Trilobite
Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period () and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 270 million years, with over 22,000 species having been described. By the time trilobites first appeared in the fossil record, they were already highly diversified and geographically dispersed. Because trilobites had wide diversity and an easily fossilized exoskeleton, they left an extensive fossil record. The stu ...
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