- Taxon calibrated
- Crown Esox
- Minimum age
- 51.57 Ma
- Maximum 95% CI age
- 114.0 Ma
- Authority
- Grande (1999)
- Locality
- Fossil Butte Member, Green River Formation (F-2 locality), Wyoming, USA
- Age Authority
- Smith et al. (2008)
- Outgroup sequence
- Esox kronneri (Crown Esox, 51.57 Ma)
- Estesesox foxi (Total group Esocidae, 76.4 Ma)
- Apateodus glyphodus (Total group Aulopiformes, 103.13 Ma)
- Leptolepides haerteisi (Total group Euteleostei, 150.94 Ma)
- Anaethalion zapporum (Crown Teleostei, 151.2 Ma)
- Occithrissops willsoni (stem Teleostei 5, 166.1 Ma)
- Leptolepis coryphaenoides (stem Teleostei 4, 181.7 Ma)
- Dorsetichthys bechei (stem Teleostei 3, 193.81 Ma)
- Knerichthys bronni (stem Teleostei 2, 221 Ma)
- Prohalecites porroi (stem Teleostei 1, 236 Ma)
- Watsonulus (stem Halecomorphi 1, 251.2 Ma)
- Taxa this fossil might apply to:
- Class: Actinopteri
- Subclass: Neopterygii
- Infraclass: Teleostei
- Megacohort: Osteoglossocephalai
- Supercohort: Clupeocephala
- Cohort: Euteleosteomorpha
- Subcohort: Protacanthopterygii
- Order: Esociformes
- Family: Esocidae