A review and revision of the Jurassic-Early Cretaceous Globigerinina, with especial reference to the Aptian assemblages of Speeton (North Yorkshire, England)

F. T. Banner, Damini Desai
1988 Journal of Micropalaeontology  
<p><strong>Abstract.</strong> The classification of the Jurassic to Albian Globigerinina is revised, phyletically and taxonomically. The Favusellacea comprise the genera <i>Globuligerina</i> (Jurassic) and <i>Conoglobigerina</i> (Jurassic-earliest Cretaceous), its descendant <i>Favusella</i> (Hauterivian to Cenomanian) and <i>Ascoliella nov.</i> (type species <i>A. scotiensis nov.</i>) (Aptian-Albian). The Globigerinacea include the families Praehedbergellidae <i>nov.</i> (from which the
more » ... om which the Hedbergellidae and its allies are descended) and the Schackoinidae; both are microperforate and nonmuricate. The Praehedbergellidae originate with <i>Gorbachikella nov.</i> (type species <i>G. kugleri</i> (Bolli)) and include <i>Praehedbergella</i> (Hauterivian-Aptian, including <i>P. tatianae nov., P. grigelisae</i> nov.), <i>Wondersella, Blefuscuiana nov.</i> (including <i>B. kuznetsovae nov., B. mitra nov., B. multicamerata nov., B. speetonensis nov., B. globigerinelloides</i> (Subbotina) <i>lobulata nov.</i> and <i>B. occulta</i> (Longoria) <i>quinquecamerata nov.</i>) (Barremian to Danian) and <i>Lilliputianella nov.</i> (including <i>L. longorii nov</i>.) (Aptian). The Schackoinidae includes <i>Blowiella, Leupoldina</i> and <i>Schackoina.</i> All the genera have their diagnoses emended as they are reinterpreted in accordance with the revised phyletic classification. Suggestions are made to explain the adaptive evolution of the taxa to the developing Early Cretaceous ocean.</p>
doi:10.1144/jm.7.2.143 fatcat:qsilyytchzai5ajw4qp3mhn3rm