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Topic: Asaphus kowalewski

	about Russian Trilobites
		Asaphus lamanskii was successively superceded by Asaphus raniceps and Asaphus major that occur in the kunda horizon, and the much later Middle Ordovician termination of the branch with Asaphus delphinus; mysteriously, no intermediate forms are known.
		Asaphus expansus apparently gave rise to the remainder of the Asaphus line, which itself would undergo additional and exotic diversification.
		Asaphus applanatus began a tendency to larger width and genal angle, such as the impressive Asaphus platyurus.
	www.fossilmall.com /Science/About_Russian_Trilobites.htm (819 words)

	Asaphida - Wikipedia, the free encyclopedia
		One Asaphida line, the superfamily Asaphoidea, shows a continuous evolution of eyestalks, from ones with mere eye stubs to Asaphus kowalewski, a trilobite popular with collectors that sported long, eye-tipped stalks.
		This line is found in the Middle Ordovician Asery Level deposits of the Wolchow River region near Saint Petersburg, Russia.
		One thought is that this trilobite may have lain in wait for prey buried in the bottom sediment with only its 14 mm periscope eyestalks protruding.
	en.wikipedia.org /wiki/Asaphida (257 words)

	Asaphus kowalewski - Wikipedia, the free encyclopedia
		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.
	en.wikipedia.org /wiki/Asaphus_kowalewski (166 words)

	Kozmic Dreams Trilobite Collection
		Asaphus kotlukovi with spherical cystoid, 4 inches long
		Asaphus kowalewski, 3.4 inches long not including eyestalks
		Asaphus kowalewski, 2.3 and 1.5 inches long not including eyestalks
	www.kozmicdreams.com /trilobites.htm (344 words)

	Asaphida biography .ms (Site not responding. Last check: 2007-11-07)
		One Asaphida line, the superfamily Asaphoidea, shows a continuous evolution of eyestalks, from ones with mere eyestubs to Asaphus kowalewski, a trilobite popular with collectors that sported long eye-tipped stalks.
		This eye-stalk development is believed to be an adaptation to changes in turbidity during this time, with eye-stalked trilobites like Asaphus kowalewski presumably arising in a time of increased turbidity.
		One thought is that this trilobite may have lain in wait for prey buried in the bottom sediment with only its 14mm periscope eyestalks protruding.
	asaphida.biography.ms (249 words)

	Picture
		To have such perfection on what is likely one of the largest Asaphus Cornutus' ever prepared, is truly a rarity.
		Here we have an Asaphus Cornutus and an Asaphus Punctatus, each relatively large, and each perfectly and aesthetically displayed on a white, contrasting matrix.
		What makes it special is that is has both extremely rare size AND absolute perfection, so rarely do size and perfection exist in the same specimen, so with this specimen, you literally have it all, and a very important Russian trilobite for your collection.
	www.thefossilgallery.com /trilobites.htm (1385 words)

	Picture
		To have such perfection on what is likely one of the largest Asaphus Cornutus' ever prepared, is truly a rarity.
		Each individual trilobite is flawless and among the finest of its size ever prepped out of St. Petersburg, to have all seven of these incredibly beautiful gems placed so aesthetically on the matrix, it truly is a wonder to see.
		What makes it special is that is has both extremely rare size AND absolute perfection, so rarely do size and perfection exist in the same specimen, so with this specimen, you literally have it all, and a very important Russian trilobite for your collection.
	thefossilgallery.com /trilobites.htm (772 words)

	Among My Trilobites (Site not responding. Last check: 2007-11-07)
		Asaphus kotlukovi: 5cm Lower Asery Level, Volchow River, St. Petersburg, Russia
		Asaphus punctatus: 6cm Lower Asery Level, Volchow River, St. Petersburg, Russia
		Asaphus holmi: 7cm Volchow River, St. Petersburg, Russia
	members.cox.net /tyra-rex2/to1.html (410 words)

	Asaphus kowalewskii Russian Trilobite
		Description: Coming from the Middle Ordovician Asery Level deposits of the Wolchow River region near Saint Petersburg, Russia, this is a large example of the trilobite Asaphus kowalewskii.
		The genus Asaphus underwent some remarkable adaptations to changes in turbidity during the Ordovician, with this one presumably arising in a time of increased turbidity.
		One thought is that the trilobite may have lain in wait for prey buried in the bottom sediment with only its dramatic 28 mm periscope eyestalks protruding.
	www.fossilmuseum.net /Fossil_Galleries/Russian_Trilobites/Asaphus_kowalewskii/Asaphus-kowalewskii.htm (145 words)

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