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
Protarpon (Megalops) oblongus
Scientific Classification
Class: Actinopterygii (Ray-finned Fish)
Order: Elopiformes
Family: Elopidae
Genus: Protarpon (Megalops)
Species: oblongus (Casier 1966)
Similar to other Elopiformes in the London Clay, Protarpon oblongus is only represented by one specimen in the collection of the Natural History Museum, London. The specimen is somewhat limited, representing only a small section towards the back of the neurocranium however differs significantly from Protarpon priscus due to it’s more elongated morphology.
- Similar to P. priscus with two diverging raised ridges on top of cranium (1)
- On P. priscus, these diverging ridges start nearer the rear of the skull


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