Genus: Diphydontosaurus WHITESIDE, 1986
Etymology:

Species: avonis WHITESIDE, 1986
Etymology:

Holotype: BU 23760

Locality: Tytherington Quarry (ST 660 890), 16 km north of Bristol, (ST 660890), Avon County, England, Southern United Kingdom.

Horizon: Fissure Fill.

Biostratigraphy:

Age: Carnian/Norian Stage, Upper Late Triassic Epoch, Late Triassic.

Material: Right dentary.

Paratypes:

BU 23763: Left premaxilla.

BU 23764: Right maxilla.

BU 23842: Left nasal.

BU 23787: Frontal.

BU 23789: Right parietal.

BU 23785: Left postorbital.

BU 23781: Left postfrontal.

BU 23790: Right jugal.

BU 23780: Left prefrontal.

BU 23782: Left squamosal.

BU 23783: Right quadrate with fused quadratojugal.

BU 23772: Right vomer.

BU 23776: Left palatine.

BU 23768: Left pterygoid.

BU 23774: Left ectopterygoid.

BU 23986: Basioccipital.

BU 23778: Right exsoccipital.

BU 23777: Parabasiphenoid.

BU 23761: Right articular complex.

BU 23762: Left coronid.

Referred material:

WHITESIDE & MARSHALL, 2008

BRSUG 23987: Part of left dentary.

BRSUG 23988: Part of left dentary.

BRSUG 23989: Anterior part of right dentary.

BRSUG 23900: Part of right maxilla.

 

FRASER, 1994

Locality: Holwell Quarry near Frome, Somerset County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Rhaetic Stage, Uppermost Late Triassic Epoch, Late Triassic or Early Jurassic.

Material:

Number: Not given: Jawbones.

 

KLEIN, WHITESIDE, LUCAS, VIEGAS, & BENTON, 2015

Locality: Fissure 1 in Woodlease Quarry, South Gloucestershire County, England, Southern United Kingdom.

Horizon: Rhaetian Fissure fill in Lower Carboniferous Limestone.

Biostratigraphy:

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

Material:

BRSUG 29381-98: Anterior portion o fleft dentary.

BRSUG 29381-99: Mid p9ortion of dentary.

BRSUG 29382-29: Articualr.

 

GALTON, 2008 (2007)

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

Horizon:

Biostratigraphy:

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

Material:

BRSMG/BCM Cb474: Vertebrae, ribs, shaft of long bone and jaw.

BRSMG/BCM Cb4715: Partial articulated skeleton with part of the vertebral column, a femur and complete hind limb including an intact long slender pes.

 

MUSSINI, WHITESIDE, HILDEBRANDT & BENTON, 2019

Locality: Fissure 2 at Tytherington Quarry, south Gloucesterhsire County, England, Southern United Kingdom.

Horizon: Fissure Fill.

Biostratigraphy:

Age: Carnian/Norian Stage, Upper Late Triassic Epoch, Late Triassic.

Material:

BRSUG 29956-1: Dentary.

BRSUG 29956-4: Humerus.

BRSUG 29956-2: Right maxilla.

Numbers: Not given: 145 specimens, including jaw fragments, cranial bones and postcranial elements.

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