
This scholarly yet approachable work surveys the fossilized bones of the extinct pterodactyls uncovered in the Cambridge Upper Greensand and now housed in the Woodwardian Museum. Written as a segment of a larger museum catalogue, it serves students and enthusiasts by indexing specimens and explaining the comparative anatomy that underpins early classifications. The author openly discusses the methodological challenges of 19th‑century paleontology, offering transparent reasoning behind each taxonomic decision.
The text is richly illustrated with twelve detailed plates that reveal wing membranes, skull fragments, and limb joints, allowing listeners to visualise the delicate structures that once powered these soaring reptiles. By comparing English material with German and French finds, the author traces the group's gradual morphological changes from early Triassic forms to the more derived Cretaceous varieties. Throughout, the narrative remains grounded in the evidence at hand, inviting the audience to follow the reasoning that shaped early concepts of Ornithosaurian evolution.
Full title
The Ornithosauria An elementary study of the bones of Pterodactyles made from fossil remains found in the Cambridge Upper Greensand, and arranged in the Woodwardian Museum of the University of Cambridge
Language
en
Duration
~5 hours (310K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Tom Cosmas from materials made available on Google Books and The Internet Archive
Release date
2016-07-27
Rights
Public domain in the USA.
Subjects

1839–1909
A pioneering British paleontologist, he helped shape how scientists think about dinosaurs by arguing that they fell into two major groups based on hip structure. His work on fossil reptiles and flying reptiles made him an important figure in late 19th-century geology and paleontology.
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by H. G. (Harry Govier) Seeley