четверг, 1 ноября 2007 г.
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Trilobite from ordovician claystone
Asaphus kowalewskii. Low Ordovician. Asery level. Duboviki fm. Saint-Petersburg
Accumulation of trilobites shell
Xenasaphus devexus. Low Ordovician. Uhaku level. Valimskaya fm. Saint-Petersburg.
Trilobite from ordovician claystone
Asaphus sulevi. Low Ordovician. Kunda level. Simankovo fm. Saint-Petersburg.
Trilobite from cambrian claystone
Jakutus primigenius. Low Cambrian. Bottom level. Sinskaya fm. Siberia, Yacutsk.
Soft-bodied animal from vendian sandstone
Dickinsoia costata. Late Neoproterozoic Vendian Group. Verkhovka fm. Archangelsk.