Genus: Sonselasuchus SMITH & SIDOR, 2026
Etymology: In reference to the Sonsela Member of the Chinle Formation, the type section is located at the Sonsela Buttes on the Navajo Nation, and Latinization of the Greek word soukhos, for the Egyptian crocodile deity Sobek, reflecting the pseudosuchian affinities of the taxon.

Species: cedrus SMITH & SIDOR, 2026
Etymology: The specific epithet, ‘cedrus’ is the gnus name for the common cedar (actually the juniper, Juniperus spp.) and refers to the Cedar Tank, the geographic feature in Petrified Forest National Part near the type locality.

Holotype: PEFO 47305/UWBM 119436

Locality: The Kaye Quarry (PFV 410/UWBM C2226), west of Cedar Tank, Petrified Forest National Park, Apache County, Arizona.

Horizon: Jim Camp Wash Beds, Sonsela Member, Chinle Formation.

Biostratigraphy:

Age: Norian Stage, Late Triassic Epoch, Late Triassic.

Material: Left maxilla.

Referred material:

PEFO 39266/UWBM 108204: Right metatarsal II.

PEFO 39314/UWBM 108295: Left pubis.

PEFO 39392/UWBM 108398: Left tibia.

PEFO 39417/UWBM 108877, PEFO 43280/UWBM 116806: 3 pedal unguals.

PEFO 39504/UWBM 109843, PEFO 55854/UWBM 124792: 2 right coracoids.

PEFO 39508/UWBM 109847, PEFO 40408/UWBM 228349: 3 left femora.

PEFO 39513/UWBM 109852: Right metatarsal III.

PEFO 39517/UWBM 109856: Right scapula.

PEFO 40046/UWBM 109906: Co-ossified ischia.

PEFO 40111/UWBM 118529: Left humerus.

PEFO 40125/UWBM 118569: Co-ossified pubes.

PEFO 43250/UWBM 117948: Right fibula.

PEFO 43262/UWBM 116799: Right femur.

PEFO 42366/UWBM 116792: Left ilium.

PEFO 42980/UWBM 117633: 2 caudal vertebrae.

PEFO 42490/UWBM 117021: Bassioccipital.

PEFO 42992/UWBM 117645: Right pubis.

PEFO 42493/UWBM 117125: Partial skull.  

PEFO 42494/UWBM 117126: Left scapula.

PEFO 43249/UWBM 117947: Right pubis.

PEFO 43299/UWBM 117997: Right ulna.

PEFO 43309/UWBM 118007: Trunk vertebra.

PEFO 43373/UWBM 118129: Left pterygoid.

PEFO 46868/UWBM 118749: Right metatarsal IV.

PEFO 46869/UWBM 118750: Right pterygoid.

PEFO 46914/UWBM 118808: Left metatarsal I.

PEFO 46963/UWBM 118966: Right astragalus.

PEFO 47258/UWBM 117284: Cervical vertebra.

PEFO 47272/UWBM 119291: Left calcaneum.

PEFO 47376/UWBM 119669: Co-ossified ischia.

PEFO 47396/UWBM 119980: Right ischium.

PEFO 47546/UWBM 119970: Left dentary.

PEFO 472683/UWBM 119387: Co-ossified parietals..

PEFO 47068/UWBM 119072: Left premaxilla.

PEFO 47089/UWBM 119093: Right quadrate.

PEFO 54533/UWBM 120400: Right radius.

PEFO 54616/UWBM 120519: Right dentary.

PEFO 55558/UWBM 124171: Sacral centrum.

PEFO 55559/UWBM 124172: Right ilium.

PEFO 55619/UWBM 124232: Left posterior hemimandible.

PEFO 55686/UWBM 124445: Sacrum with three co-0ssifed vertebrae.