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
Gonorynchiformes (Milkfish)
Scientific Classification
Class: Actinopterygii (Ray-finned Fish)
Superorder: Ostariophysi
Order: Gonorynchiformes (Milkfish)
Gonorynchiformes represent a group of ray-finned fish more commonly known as Milkfish. Evolving during the Early Cretaceous, these streamlined, toothless fish feed generally on marine algae.
There is currently only one named species of Gonorynchiformes found within the London Clay, that of Halecopsis insignis.

Image details: Chanos chanos (Forsskål, 1775) observed in Philippines by kenny_well (licensed under http://creativecommons.org/licenses/by-nc/4.0/)