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
Scombriformes (Mackerel & Tunas)
Scientific Classification
Class: Actinopterygii (Ray-finned Fish)
Clade: Percomorpha
Order: Scombriformes
Scombriformes are an incredibly diverse order of ray-finned fish including Mackerel, Tuna, Barracuda, Kingfish, Cutlassfish and Swordfish.
Scombriformes evolved during the Paleocene but enjoyed significant species diversification during the Eocene of which the London Clay showcases well.
This image shows a Skipjack Tuna, just one of the extant species within the order Scombriformes.

Katsuwonus pelamis (Linnaeus, 1758) Observed in Indonesia by Michael Verdirame (licensed under http://creativecommons.org/licenses/by-nc/4.0/)