Genus: Plastremys OWEN, in PARKINSON, 1881
Etymology:
= Trachyaspis BERGOUNIOUX, 1957
Etymology:

Species: lata OWEN, in PARKINSON, 1881
Etymology:
= Hylaeochelys lata (OWEN, in PARKINSON, 1881)

Holotype: NHMUK R48

Locality: St. Lawrence, Isle of Wight County, Hampshire, England, Southern United Kingdom.

Horizon: Upper Greensand.

Biostratigraphy:

Age: Late-Middle Albian Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Early Cretaceous.

Material: A block of matrix with a disarticulated partial shell.

Referred material:

 

= Trachyaspis turbulensis BERGOUNIUX, 1957
Etymology:

Holotype:

Locality: Mina Pintada, near Garagallo, Teruel Province, Spain.

Horizon:

Biostratigraphy:

Age: Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Shell fragments.

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Species: rutteri (ANDREWS, 1920) JOYCE, 2022
Etymology:
= Trachyodermochelys rutteri ANDREWS, 1920

Holotype: NHMUK R4214

Locality: Melbury Down, near Shaftesbury, Dorset County, England, Southern United Kingdom.
Horizon: Upper Greensands.

Biostratigraphy:

Age: Late-Middle Albian Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Early Cretaceous.

Material: Fragmentary shell.

Referred material:

= Plastremys lata PEREDA-SUBERBIOLA & BARRETT, 1999

Locality: Cambridge County, England, Southern United Kingdom.

Horion: Cambridge Greensand.

Biostratigraphy:

Age: Early Cretaceous.

Material:

NHMUK R2251: Shell fragments.

NHMUK 35188: Isolated peripheral fragment.

NHMUK 35188a: Isolated peripheral fragment.

NHMUK 35188b: Isolated fragment.

NHMUK 46375: Isolated peripheral fragment.

JOYCE, 2022

CAMSM B56029: Shell fragment.

CAMSM B56045, B56046, B56070, B56328, B56329, B56331, B56336, B56070, B56339, B56344, B56346: 11 Shell fragments.

Camsm B56349: A neural.

CAMSM B56350-B56352: 2 partial neurals.

CAMSM B56353-B56335, B56357-B56365: 12 shell fragments.

CAMSM B56443, B56604, B56605: 3 Plastral notch fragments.