· 1 The back-to-front plesiosaur Cryptoclidus (Apractocleidus) aldingeri from the Kimmeridgian of Milne Land

• Main Author: Adam Stuart Smith
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Greenland; Milne Land
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.491.86; http://plesiosauria.com/pdf/Smith_2007_Greenland_plesiosaur.pdf

Vol. 55, pp. 1–7 (www.2dgf.dk/publikationer/bulletin) In 1935, von Huene identified the partial skeleton of a fossil reptile from the Kimmeridgian of Milne Land, Greenland, as part of a plesiosaur. This specimen was used as the holotype of Cryptoclidus (Apractoclidus) aldingeri, but was interpreted erroneously. The specimen is here reinterpreted and described as the pectoral region and posterior portion of the neck. The specimen is not diagnostic past the level of family, and is regarded as Cryptoclididae indet – the species aldingeri therefore becomes a nomen dubium.