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Asaphus kowalewski''Asaphus kowalewski'' is one of the 35 species of the genus ''Asaphus'' (sometimes called ''Neoasaphus''). Fossils of this species are popular among collectors because of their prominent stalked eyes, many an inch or more in length. During the Ordovician period, several species of the genus ''Asaphus'' developed remarkable adaptations to changes in turbidity, with ''Asaphus kowalewski'' presumably arising in a time of increased turbidity. The trilobite may have lain in wait buried in a benthic layer of loose debris or sediment with only its periscope eyestalks protruding above, looking out for danger or prey. Most of the fossils of this species are found in the middle Ordovician deposits of the Wolchow River region near Saint Petersburg, Russia. == References == * Some of the information in this article was taken from the website [http://www.aloha.net/~smgon/ordersoftrilobites.htm A Guide to the Orders of Trilobites] by Sam Gon III. Prehistoric arthropods See other meanings of words starting from letter: AAB | AC | AD | AE | AF | AG | AH | AI | AJ | AK | AL | AM | AN | AO | AP | AR | AS | AT | AU | AW | AX | AY | AZ |Words begining with Asaphus_kowalewski: Asaphus_kowalewski
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