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Eocaecilia micropodia

Caecilians formed a group of limbless, mostly fossorial amphibians that lived in the tropical regions of Asia, Africa and South America. The fossil record of caecilians is extremely scarce. Eocaecilia from the Early Jurassic of Arizona is the earliest known Caecilian and also the most complete one. Among primtive features, Eocaecilia retains tiny limbs that have completely disappeared in modern species.


Eocaecilia micropodia


Jenkins and Walsh, 1993

Meaning of the generic name

Dawn Caecilian


Skull length: 12.6 mm, Length: 15 cm


Complete skeleton

Age and Distribution

Early Jurassic Kayenta Formation, Cononino County, Arizona.


Lissamphibia Gymnophiona Eocaeciliaidae

  Further Reading

  Jenkins, FA & DM Walsh (1993), An Early Jurassic caecilian with limbs. Nature 365: 246-250.


Illustration by N. Tamura

Reconstructed skeleton and skull of Eocaecilia micropodia, Jenkins and Walsh, 1993, Nature.