Eosynanceja Temporal range: Lower Eocene[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Division:	Teleostei
Order:	Perciformes
Family:	Synanceiidae
Genus:	†Eosynanceja Casier, 1946
Species:	†E. brabantica
Binomial name
†Eosynanceja brabantica Casier, 1946

Eosynanceja ("dawn Synanceia") is an extinct genus of prehistoric scorpionfish that lived during the Eocene.^[1] It contains a single species, E. brabantica, known from the Early Eocene of Belgium.^[2][3]

It is the oldest known scorpaenoid—and one of the oldest definitive crown group perciforms—to be known from body fossils.^[4] It is known from portions of the jaw, cheek, and vertebral column.^[5]

1. ^ ^{a b} Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2011-07-23. Retrieved 2009-02-27.
2. ^ Dobbels, Leon (1994). "Soortenlijst van fossiele vissen uit het Eoceen van België" (PDF). Afzettingen WTKG. 15 (4).
3. ^ "PBDB Taxon". paleobiodb.org. Retrieved 2025-02-10.
4. ^ Near, Thomas J.; Thacker, Christine E. (2024-04-18). "Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)". Bulletin of the Peabody Museum of Natural History. 65 (1). doi:10.3374/014.065.0101. ISSN 0079-032X.
5. ^ Grzimek's Animal Life Encyclopedia (PDF). 2003. p. 164. doi:10.5860/choice.40-6159. ISSN 0009-4978.

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