 In 1823, Anning discovered a second, much more complete plesiosaur skeleton, specimen BMNH 22656. When Conybeare presented his analysis of plesiosaur anatomy to a meeting of the Geological Society in 1824, he again failed to mention Anning by name, even though she had possibly collected both skeletons and she had made the sketch of the second skeleton he used in his presentation. Conybeare's presentation was made at the same meeting at which William Buckland described the dinosaur Megalosaurus and the combination created a sensation in scientific circles. The second fossil was named and described as Plesiosaurus dolichodeirus and is the type specimen (holotype) of this species, which itself is the type species of the genus.
