{{Short description|Extinct genus of gastropods}} {{Italic title}} {{Automatic taxobox | fossil_range = {{geological range|416|200|Devonian - Triassic}} | image = Worthenia.jpg | image_alt = | image_caption = ''Worthenia'' cf. ''tabulata'' | taxon = Worthenia | authority = de Koninck, 1883<ref>de Koninck L. G. (1883). "Faune du calcaire carbonifère de la Belgique, 4e partie, Gastéropodes (suite en fin)". ''Musée Royale d’Historie Naturelle Belgique Annales, Série Paléontoloque'' '''8''': 1-240. page 64.</ref> }}
'''Worthenia''' is an extinct genus of sea snail found in the fossil record. This genus is primarily found in rocks formed during the Devonian to Triassic periods (416-200 Ma) from the central areas of North America. ''Worthenia'' was named for the paleontologist Amos Henry Worthen, who lived from 1813 to 1888.<ref>''National Audubon Society Field Guide to Fossils'' (408)</ref>
''Worthenia'' species have a "turban-shaped shell in which a raised ridge follows the margin of the whorls. Small nodes occur along the ridge, and the opening of the shell is oval and large."<ref>"[http://www.britannica.com/EBchecked/topic/649250/Worthenia Worthenia]." ''Encyclopædia Britannica''. 2010. Encyclopædia Britannica Online. 04 Nov. 2010.</ref>
==References== {{Wikispecies|Worthenia}} {{Reflist|2}}
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Category:Lophospiridae Category:Devonian first appearances Category:Triassic extinctions
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