The oldest stylophoran echinoderm: a new Ceratocystis from the Middle Cambrian of Germany
作者： Imran Alexander Rahman , Samuel Zamora , Gerd Geyer
DOI: 10.1007/S12542-009-0039-Z
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摘要: A new stylophoran (Ceratocystis prosthiakida sp. nov.) from the early Middle Cambrian of Franconian Forest (north-east Bavaria, Germany) is described with aid computed tomography, a powerful means visualizing fossil anatomy. Investigation in this manner enabled previously inaccessible, buried parts to be imaged and studied. In addition, procedure for digitally correcting plate articulations was implemented. Ceratocystis nov. possesses thin anterior right spine which clearly differentiates it other species Ceratocystis. Similar species, C. lived storm-dominated shallow marine conditions. The Galgenberg Formation, has an Agdzian age unified West Gondwanan chronostratigraphy. As result, represents oldest known date.
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