Error vacuo, detecting structures in poorly calcified Jurassic Dasycladales.

Document Type: Original paper (Research paper)

Author

University of Naples Federico II, Department of Earth Sciences, Environment and Resources, Naples, Italy

Abstract

Several Jurassic dasycladalean genera (e.g. Pseudoclypeina, Palaeodasycladus, Eodasycladus, Chinianella and Cylindroporella) display a complex structure which, owing to a deficit of calcification, is difficult to interpret. This lack of calcification causes a loss of certain soft algal structures and complicates the work of the specialist responsible for interpreting the algal anatomy as well as the corresponding position in the systematics. A key of interpretation is given, and case histories are discussed.

Keywords