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Agnathans and the origin of jawed vertebrates

✍ Scribed by Forey, Peter; Janvier, Philippe

Book ID
109782913
Publisher
Nature Publishing Group
Year
1993
Tongue
English
Weight
939 KB
Volume
361
Category
Article
ISSN
0028-0836

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## Abstract The mouthparts of anuran tadpoles are highly derived compared to those of caecilians or salamanders. The suprarostral cartilages support the tadpole's upper beak; the infrarostral cartilages support the lower beak. Both supra‐ and infrarostral cartilages are absent in other vertebrates.