Polyodon tuberculata†
- Taxon calibrated
- Crown Polyodontidae
- Minimum age
- 63.1 Ma
- Maximum 95% CI age
- 177.6 Ma
- Authority
- Grande & Bemis (1991); Puercan NALMA date from GTS2012
- Locality
- Tullock Formation, Montana, USA
- Age Authority
- Puercan NALMA, age estimate derived from Gradstein et al. (2012)
- Outgroup sequence
- Polyodon tuberculata (Crown Polyodontidae, 63.1 Ma)
- Protopsephurus luii (Crown Chondrostei, 120.8 Ma)
- Peipiaosteus pani (stem Chondrostei 3, 129.3 Ma)
- Chondrosteus acipenseroides (stem Chondrostei 2, 193.81 Ma)
- Birgeria groenlandica (stem Chondrostei 1, 250.1 Ma)
- Taxa this fossil might apply to:
- Class: Actinopteri
- Subclass: Chondrostei
- Order: Acipenseriformes
- Family: Polyodontidae