4.5 m
Scale anchored to a reviewed measurement
Uniformly scaled by full beak-to-tail length.
Archelon ischyros
A scientific life reconstruction of the largest and most complete Vienna Archelon specimen at 4.5 m long. Beak-to-tail length is the sole uniform scale anchor; flipper spread remains pose-dependent.
Dimensions
- Height
- 1 m
- Length
- 4.5 m
- Weight
- 2.2 t
Quick facts
- Largest specimen length
- 4.5 m
- Estimated mass
- over 2,200 kg
- Vienna specimen age
- about 72 million years
Archelon ischyros · Size infographic

Related objects
Sources and measurement33 References
Dimensions were cross-checked against independent sources before publication.
Measurement basis
Beak-to-tail length is the sole uniform scale anchor; flipper spread remains pose-dependent.