Osteoglossiformes (Bony tongues)
Elopiformes (Tarpon / Tenpounders)
- Elops sp.
- Esocelops cavifrons
- Protarpon (Megalops) oblongus
- Protarpon (Megalops) priscus
- Promegalops sheppeyensis
- Promegalops signeuxae
Aulopiformes (Grinners & Lizardfish)
Beryciformes (Soldier/Pricklefish)
Scombriformes (Mackerel & Tuna)
- Eocoelopoma colei
- Eocoelopoma curvatum
- Eocoelopoma gigas
- Micrornatus hopwoodi
- Scombramphodon crassidens
- Scombramphodon sheppeyensis
- Duplexdens (Scombrinus) macropomus
- Scombrinus nuchalis
- Sphyraenodus priscus
- Tamesichthys decipiens
- Wetherellus brevior
- Wetherellus cristatus
- Wetherellus longior
- Woodwardella patellifrons
- Palaeocybium proosti
- Bramoides brieni
- Goniocranion arambourgi
- Undescribed Scombrid #1
- Undescribed Scombrid #2
Carangiformes (Jack Mackerels)
- Enniskillenus radiatus
- Cylindracanthus rectus
- Hemirhabdorhynchus elliotti
- Acestrus elongatus
- Acestrus ornatus
- Aglyptorhynchus sulcatus
- Aglyptorhynchus venablesi
- Xiphiorhynchus priscus
Eutrichurides winkleri
Scientific Classification
Class: Actinopterygii (Ray-finned Fish)
Order: Scombriformes
Family: Trichiuridae (Cuttlassfish)
Genus: Eutrichurides
Species: winkleri (Casier 1966) or Macroynis casieri (Beckett et al 2018)
There has been much confusion about this unusual fish specimen and recent research (Beckett et al 2018) has re-evaluated this specimen and assigned the name Macroynis casieri.
- No evidence of sclerotic ossicle in orbit (1)
- Large, robust conical teeth (2)

Beckett, H et al. (2018) Morphology and phylogenetic relationships of fossil snake mackerels and cutlassfishes (Trichiuroidea) from the Eocene (Ypresian) London Clay Formation
Casier, E. (1966) Fauna ichthyologique du London Clay. British Museum Natural History London, 1966, 1-496
Monsch, K (2005) Revision of the scombroid fishes from the Cenozoic of England
Raynor, Mitchell, Clouter (2009) London Clay Fossils of Kent and Essex