LINKS TO ALL FISH:

 

Acipenseriformes (Sturgeons) 

Pycnodontiformes

Amiiformes (Bowfins)

  • Lehmanamia sheppeyensis

Osteoglossiformes (Bony tongues)

Albuliformes (Bonefishes)

Anguilliformes (Eels)

Elopiformes (Tarpon / Tenpounders)

Siluriformes (Catfish)

Gonorynchiformes (Milk fish)

Aulopiformes (Grinners & Lizardfish)

Gadiformes (Cod & Hake)

Holocentriformes (Soldier fish)

  • Myripristis toliapicus
  • Naupygus bucklandi
  • Paraberyx bowerbanki

Ophidiiformes (Cusk-eels)

Scombriformes (Mackerel & Tuna)

Gempylidae (Snake Mackerels)

Carangiformes (Jack Mackerels)

Istiophoriformes (Billfish)

Labriformes (Wrasses)

Perciformes (Perch-like)

Pleuronectiformes (Flatfish)

Acanthuriformes (Luvar fish)

  • Beerichthys ingens
  • Beerichthys sp.

Ephippiformes (Spadefishes)

Lampriformes (Opahs/Oarfish)

Spariformes (Sea Bream)

Duplexdens (Scombrinus) macropomus

Scientific Classification

Class:               Actinopterygii (Ray-finned Fish)

Order:              Scombriformes

Family:             Scombridae

Genus:             Duplexdens (Scombrinus)

Species:          macropomus (Woodward 1901)

Duplexdens macropomus is a rare Scombrid fish from the London Clay which has similarities with the extant King Mackerel or Kingfish (Scomberomorus cavalla) pictured here.

 

This streamlined fish has an elongated skull with sharp, conical-shaped straight teeth regularly spaced on both the upper and lower jaws. The lower jaw also features small secondary teeth on the outside of the jaw.

 

These have been found in Divisions D/E of the London Clay on the Isle of Sheppey.

Scomberomorus cavalla (Cuvier, 1829) Observed in United States of America by norops (licensed under http://creativecommons.org/licenses/by-nc/4.0/)

Distinguishing Characteristics:
  • Sclerotic ossicle present in orbit (1)
  • Sharp, regularly spaced teeth (2)
  • Elongated skull ending with a pointed-maxilla bone (3) 
Primary Example: Dan Hogburn Specimen
3D Scan: Dan Hogburn Specimen 1

3D scans undertaken by Tom Sermon with permission. 

Additional examples: Fred Clouter Specimen 1
Fred Clouter Specimen - As found washing out of the clay on the Isle of Sheppey

Photograph courtesy of Fred Clouter 

3D Scan: Fred Clouter Specimen 1

3D scans undertaken by Tom Sermon with permission. 

Micro-CT scan: Fred Clouter Specimen 1

3D scans undertaken by Tom Sermon with permission. 

Additional examples: NHMUK PV P 4145
CT Scan: NHMUK PV OR 37759

3D scans taken by the Natural History Museum, London and provided to Tom Sermon with permission to publish. 

References
  • 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