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 Date: 2010-06-14 08:27:49Peltoceras Ammonoidea Eoderoceras Pachyceratidae Ammonites Ammonitida Umiaites |
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Palaeontologia Electronica http://palaeo-electronica.org | Aptian ammonites from Mazapil, Zacatecas State (north-central Mexico) studied by BURCKHARDT in 1906: A revisionDocID: 1riwq - View Document |
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