This report documents the new location of the representative Ordovician trilobite Asaphus expansus. This well-known trilobite was discovered in the “Storkowo” Mining Plant in the central part of the West Pomeranian Province in Poland.
 Ainsaar, L, Kaljo, D, Martma, T, Meidla, T, Männik, P, Nolvak, J and Tinn, O (2010). Middle and Upper Ordovician carbon isotope chemostratigraphy in Baltoscandia: a correlation standard and clues to environmental history. Palaeogeography, Palaeoclimatology, Palaeoecology 294, 198–201.
 Ellinor Martin, Birger Schmitz, Hans‐Peter Schönlaub. From the mid‐Ordovician into the Late Silurian: Changes in the micrometeorite flux after the L chondrite parent breakup. Meteoritics & Planetary Science Volume 53, Issue 12, December 2018, Pages 2541-2557
 Anders Lindskog, Mats E. Eriksson, Carsten Tell, Fredrik Terfelt, Ellinor Martin, Per Ahlberg, Birger Schmitz, Federica Marone. Mollusk maxima and marine events in the Middle Ordovician of Baltoscandia. Palaeogeography, Palaeoclimatology, Palaeoecology Volume 440, 15 December 2015, Pages 53-65. https://doi.org/10.1016/j.palaeo.2015.08.018
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