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Further records of Amphipoda from Baltic Eocene amber with first evidence of prae-copulatory behaviour in a fossil amphipod and remarks on the taxonomic position of Palaeogammarus Zaddach, 1864

. Zootaxa. 3765, 5 (Feb. 2014), 401–417. DOI:https://doi.org/10.11646/zootaxa.3765.5.1.