1. Asaphus (Neoasaphus) holmi (Schmidt, 1901). Size: trilobite size 45 x 28 mm; approx. matrix size 45 x 35 x 20 mm, weight 25 gram. Locality: Volkhov river, St. Petersburg region, Russia. Age: Aseri Horizon, Middle Ordovician. (465 million year ago). Restoration is about 1 %.

2. Asaphus latus (Pander, 1830). Size: trilobites size 50 x 32 mm; approx. matrix size 50 x 50 x 30 mm; weight 60 gram. Locality: Volkhov river, St. Petersburg region, Russia. Age: Aseri Horizon, Middle Ordovician, zone Asaphus kowalewskii (465 million year ago). Restoration is about 1 %.

3. Asaphus lepidurus (Nieszkowski, 1959). Size:trilobite size 63 x 31 mm; approx. matrix size 40 x 35 x 25 mm; weight 42 gram. Locality: Putilovo quarry, St. Petersburg region, Russia. Age: Volkhov Horizon, Lower Ordovician. (480 million year ago). Restoration about 1 %.

4. Illaenus cf. oblongatus (Angelin, 1854). Size: trilobites size 50 x 31 mm; approx. matrix size 35 x 50 x 30 mm; weight 40 gram. Locality: Volkhov river, St. Petersburg region, Russia. Age: Aseri Horizon, Middle Ordovician, zone Asaphus kowalewskii (465 million year ago). Restoration is about 1 %.

5. Asaphus kowalewskii (Lawrow, 1856). Size: trilobite size 38 x 26 mm; approx. matrix size 50 x 45 x 20 mm; weight 42 gram. Locality: Volkhov river, St. Petersburg region, Russia. Age: Aseri Horizon, Middle Ordovician, zone Asaphus kowalewskii (465 million year ago). Restoration of about 1 %.