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Synopsis of rare fossil animal spermatozoa in amber and sedimentary deposits

Abstract : Fossil spermatozoa are extremely rare. Among the eight cases reported here, including two cases of spermatophores without visible sperm cells, six are fossils preserved in amber. All six concern examples of indirect sperm transfer by means of spermatophores or spermatodesmids. Preservation of subcellular organelles shows once again that amber is an extraordinary preservation medium.
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Gérard Breton, George Poinar. Synopsis of rare fossil animal spermatozoa in amber and sedimentary deposits. Bulletin de la Société Géologique de France, Société géologique de France, 2020, 191, pp.31. ⟨10.1051/bsgf/2020014⟩. ⟨insu-02928420⟩

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