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An exceptionally preserved Lower Cretaceous ecosystem

✍ Scribed by Zhou, Zhonghe; Barrett, Paul M.; Hilton, Jason


Book ID
109890886
Publisher
Nature Publishing Group
Year
2003
Tongue
English
Weight
803 KB
Volume
421
Category
Article
ISSN
0028-0836

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## Abstract Cartilaginous vertebrate skeletons leave few records as fossils, unless mineralized. Here, we report outstanding preservation of early stages of cartilage differentiation, present in the Devonian vertebrate __Palaeospondylus gunni__. In large specimens of __Palaeospondylus__, enlarged,