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The outstanding discovery of two heteromorph ammonites in Late Callovian and Early Oxfordian deposits, where such ammonites were deemed absent, substantially reduce the interval without heteromorph ammonite known into the Jurassic. A new species is described for the Early Oxfordian: Acuariceras acucostis sp. nov.; the Late Callovian Parapatoceras cf. tuberculatum is also studied. These latter expands...
Plant macrofossil remains of Becklesia Seward, 1895 emend. Watson and Cusack, 2005, a rare genus of extinct cycad, have been known for over a century from Great Britain and Libya. Historically the genus was poorly characterized leading to many fossil cycads that resembled Becklesia being placed in other genera including Cycadites and Paracycas. We describe here a new species, B. maulnyi sp. nov.,...
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