Species: nopcsai LAPPARENT & MURELAGA,
1999
Etymology: In honor of Baron Ferenc Nopsca.
Holotype: NHMUK (BMNH) R 171
Locality: Brook, Isle of Wight County, England, Southern United Kingdom.
Horizon: Wealden.
Biostratigraphy:
Age: Valanginian-Barremian Stage, Lowermost Neocomian Subepoch, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material: A partial shell.
Referred material:
JOYCE, CHAPMAN, MOODY & WALKER, 2011
Locality: Brightstone Bay, Isle of Wight County, England, Southern United Kingdom.
Horizon: Wessex Formation, Wealden Group.
Biostratigraphy:
Age: Valanginian-Hauterivian Stage, Neocomian Subepoch- Barremian Stage, Lower Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.
Material:
IWCMS 1998.21: Nearly complete skull and mandible with associated postcranial remains.
IWCMS 2002.22: Shell fragment.
NHMUK R5195: Proximal costal.
NHMUK R5196: 4 shell fragments.
NHMUK R5197: Peripheral fragment.
NHMUK R5198: Peripheral fragment.
NHMUK R5199: Plastral fragment.
NHMUK R5201: Peripheral fragment.
NHMUK R5202: Peripheral fragment.
NHMUK R5238: Costal fragment.
NHMUK R16583: Near-complete left hyoplastron.
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Species: bakewelli (MANTELL, 1827) JOYCE, CHAPMAN, MOODY & WALKER,
2011
= Trionyx bakewelli MANTELL, 1827
= Helochelydra bakewelli (MANTELL,
1827) NOPCSA, 1928
= Tretosternon bakewelli (MANTELL,
1827) OWEN, 1842
= Compsemys bakewelli JOYCE, CHAPMAN, MOODY & WALKER, 2011
Etymology:
Holotype: HASTM GG92/96
Locality: Hastings, (TQ 831095-TQ 853105), East Sussex County, England, Southern United Kingdom.
Horizon: Hastings Beds, (Ashdown Beds, Tunbridge Wells Sand).
Biostratigraphy:
Age: Berriasian-Valanginian Stage, Lower Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material:
Referred material:
NHMUK R970a: 1 plastron and 1 costal fragment.
NHMUK R970b: Isolated posterior right costal.
NHMUK R5891: Plastal fragment.
Locality: Brede Bone-Bed, Hastings, East Sussex County, England, Southern United Kingdom.
Horizon: Wealden Formation.
Biostratigraphy:
Age: Early Cretaceous.
Material:
Number: Not given:
BENTON & SPENCER, 1995Locality: Black Horse Quarry, Telham, (TQ 769142), East Sussex County, England, Southern United Kingdom.
Horizon: Hastings beds.
Biostratigraphy:
Age: Valanginian, Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material:
Number: Not given: Broken plasteron and carapace bones.
Locality: From the Upper Silty Bed north of the sea wall below Yaverland Battery, Sandown, Isle of Wight County, England, Southern United Kingdom.Horizon: Upper Wealden Group, Wessex Formation.
Biostratigraphy:
Age: Upper Barremian, Lowermost Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material:
Number: Not given: Partial carapace.
JOYCE, CHAPMAN, MOODY & WALKER, 2011
Locality: Cuckfield, West Sussex County, England, Southern United Kingdom.
Horizon: 'Cuckfield Stone', Hastings Sub-Group.
Biostratigraphy:
Age: Berriasian-Valanginian Stage, Lower Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material:
NHMUK 2775x: Left xiphiplastron.
NHMUK 2776: Median portion of right hyoplastron.
NHMUK 3528: Proximal costal.
NHMUK 3543a: 2 plastral fragments.
NHMUK 3598: Isolated right epiplastron.
NHMUK 26029: Shell fragment.
LYDEKKER, 1889
BMNH 2265: Dorsal surface of a costal bone.
BMNH 2276: Imperfect right hypoplastral.
BMNH 3543: The inguinal region of the rigth hyoplastral.
BMNH 3543a: The axillary retiong of the right hyoplastral.
BMNH 3375x: Eht levf xiphiplastral.
BMNH 25029: Fragment fo sandstone, showing the outer surface of a small portion of the carapace.
BMNH 39213: posterior marginal bone.
BMNH 3528: Costal of a small individual.
BMNH 3598: The anterior extremity of the plastron, imperfect on the left side.
Locality: Tilgate, West Sussex County, England, Southern United Kingdom.
Horizon: 'Cuckfield Stone', Hastings Sub-Group.
Biostratigraphy:
Age: Berriasian-Valanginian Stage, Lower Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material:
NHUMK 3507, 3509-3511, 3521, 3524, 28411: Shell fragments.
NHMUK 3531: Small shell fragment.
Locality: Battle, East Sussex County, England, Southern United Kingdom.
Horizon: Hastings Sub-Group.
Biostratigraphy:
Age: Berriasian-Valanginian Stage, Lower Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material:
NHMUK 5644: Peripheral fragment.
NHMUK R658: Partial left hyoplastron.
NHMUK 39213: 4 isolated shell fragments.
LYDEKKEr, 1889
BMNH R 658: Imperfect left hyoplastral
NAISH & SWEETMAN, 2011
Locality: Pevensey Pit, Ashdown Brickworks, northwest of Bexhill, East Sussex County, England, Southern United Kingdom.
Horizon: Wadhurst Clay Formation, Hastings Group.
Biostratigraphy:
Age: Valanginian Stage, Middle Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.
Material:
Number: Not given:
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= Helochelydra (no species name) NOPCSA, 1928
Holotype: BMNH R171
Locality: Brook-Atherfield, Isle of Wight County, England, Southern United Kingdom.
Horizon: Wealden Formation.
Biostratigraphy:
Age: Early Cretaceous.
Material:
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Species: anglica (LYDEKKER, 1889) MILNER, 2004
Etymology:
= Tresternum punctatum LYDEKKER & BOULENGER, 1887 non OWEN, 1842
= Tresternum punctatum MANSELL-PLEYDELL, 1888 non OWEN, 1842
= Tresternum punctatum LYDEKKER, 1889 non OWEN, 1842
= Platychelys ?anglica LYDEKKER, 1889
= Tresternum punctatum DELAIR, 1958 non OWEN, 1842
= Tresternum bakewelli DELAIR, 1958
= Compsemys anglica (LYDEKKER, 1889) JOYCE, CHAPMAN, MOODY & WALKER, 2011
Holotype: BMNH 48357
Locality: Durlston Bay, Dorset County, England, Southern United Kingdom.
Horizon: Purbeck Limestone Group, Portland stone-Upper Purbeck Beds.
Biostratigraphy:
Age: Portlandian, Uppermost Tithonian Stage, Uppermost Malm Epoch, Late Jurassic- Berriasian Stage, Lowermost Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material: Partial posterior carapace.
Referred material:
BMNH 46325: Partial plastron.
BMNH 48349: Fragmentary specimen.
Locality: Beckles Pit, Durlston Bay, Dorset County, England, Southern United Kingdom.
Horizon: Purbeck Limestone Group, Portland stone-Upper Purbeck Beds.
Biostratigraphy:
Age: Portlandian, Uppermost Tithonian Stage, Uppermost Malm Epoch, Late Jurassic- Berriasian Stage, Lowermost Neocomian Substage, Lowermost Early Cretaceous Epoch, Early Cretaceous.
Material:
BMNH 48352: Block number for assorted costal plates.
MANCH L9522: Partial plastron and underside of carapace of a small specimen.
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