Species: cylindrodon (RILEY & STUTCHBURY, 1836) (nomen dubium)
Etymology:
= Palaeosaurus cylindrodon RILEY & STUTCHBURY, 1836 (nomen dubium)
= Thecodontosaurus cylindrodon (RILEY, & STUTCHBURY, 1836) (nomen dubium)

Holotype: BRSMG/BCM Ca7449

Locality: Fissure fill in Quarry Steps Quarry off Upper Belgrave Road in Clifton, Bristol, ST 572747, Bristol County, England, Southern United Kingdom.

Old Locality data?: Dolomitic Conglomerate of Durdham Down, near Bristol, Gloucestershire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Rhaetian Stage, Uppermost Late Triassic Epoch, Late Triassic.

Material: Tooth fragment.

Referred material:

Locality: Warwick, Warwickshire County, England, Southern United Kingdom.

Horizon: Bromsgrove Sandstone Formation.

Biostratigraphy:

Age: Anisian Stage, Lower Mid Triassic Epoch, Middle Triassic.

Material:

Number: Not given: Tooth.

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Species:? platyodon (RILEY & STUTCHBURY, 1836) (nomen dubium)
Etymology:
= Palaeosaurus platyodon RILEY & STUTCHBURY, 1836 (nomen dubium)
= Thecodontosaurus platyodon (RILEY & STUTCHBURY, 1836) (nomen dubium)
= Rileya platyodon (RILEY & STUTCHBURY 1836) KUHN, 1933 (nomen dubium)

Holotype: BRSMG/BCM Ca7448/3

Locality: Fissure fill in Quarry Steps Quarry off Upper Belgrave Road in Clifton, Bristol, ST 572747, Bristol County, England, Southern United Kingdom.

Old Locality data?: Dolomitic Conglomerate of Durdham Down, near Bristol, Gloucestershire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Rhaetian Stage, Uppermost Late Triassic Epoch, Late Triassic.

Material: Isolated tooth, middle to posterior maxillary or posterior dentary tooth.

Referred material:

Number: Not given: Caudal centrum, right humerus, radius, chevron.

Note: HUNT, 1994 ‘the tooth and seven associated putative phytosaur bones were found with many prosauropod bones and probably represented one taxon’.

BENTON & SPENCER, 1995

BRSMG, BMNH, YPM:

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Species: stricklandi (DAVIS, 1881) (nomen dubium)
Etymology:
= ?Palaeosaurus stricklandi DAVIS, 1881 (nomen dubium)

Holotype:

Locality: Bone bed at Aust near Bristol, Gloucestershire, England, Southern United Kingdom. (Rhateic bone-bed of Coombe Hill, near Cheltenham, Gloucestershire County, England, STORRS, 1994)

Horizon:

Biostratigraphy:

Age: Rhaetian Stage, Uppermost Late Triassic Epoch, Late Triassic.

Material: Based on a posterior tooth.
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