New Pennsylvanian coleoids (Cephalopoda) from Nebraska and Iowa, USA
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DOI: 10.1017/jpa.2017.79
Abstract: Abstract. Four rare Pennsylvanian (Stark Shale: Pennsylvanian, Missourian [ =Kasimovian]) coleoids from Nebraska and Iowa, which are preserved as flattened partial phragmocones and body chambers associated with three-dimensionally fossilized ink sacs, are herein described as… read more here.
Keywords: new genus; new species; ink; nebraska iowa ... See more keywords
Beak from the body chamber of an Early Carboniferous shelled longiconic coleoid cephalopod from Arkansas, USA
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DOI: 10.1111/let.12211
Abstract: Here we report the discovery of an Early Carboniferous (Late Visean) 3D cephalopod beak displaying significant similarity to the lower beak of Recent coleoids. It was uncovered in a fragmentarily preserved, longiconic shell from the… read more here.
Keywords: arkansas usa; coleoid; beak; early carboniferous ... See more keywords