Terrestrisuchus gracils (Crush 1984, Spiekman et al 2023, 2024; Ladinian, Late Triassic (~210 mya), 50 cm long), was derived from a sister to SMNS 12591 at the base of the crocodylomorphs. It preceded Litargosuchus and SMNS 12352. Distinct from SMNS 12591 the skull of Terrestrisuchus was even narrower surrounding the upper temporal fenestrae and had an even lower rostrum. The cervicals were longer, the dorsals and caudals were more gracile. The coracoid was a parallelogram in shape. Every element of the forelimbs was greatly elongated. Only the femur and tibia were elongated on the hindlimb.

Galahadosuchus jonesi (Bodham et al 2026) was a quadruped that cannot be tested yet in the LRT pending acquisition of more data.

Allen D 2003. When Terrestrisuchus gracilis reaches puberty it becomes Saltoposuchus connectens!". Journal of Vertebrate Paleontology 23 (3): 29A.

Crush PJ 1984. A late upper Triassic sphenosuchid crocodilian from Wales. Palaeontology 27: 131-157.

Huene F von 1921. Neue Pseudosuchier und Coelurosaurier aus dem Wurttembergischen Keuper: Acta Zoologica, v. 2, p. 329-403.

Patrick EL, Whiteside DI and Benton MJ 2019. A new crurotarsan archosaur from the Late Triassic of South Wales. Journal of Vertebrate Paleontology e1645147 (18 pages) DOI: 10.1080/02724634.2019.1645147

Spiekman SNF et al 2023. A taxonomic revision and cranial description of Terrestrisuchus gracilis (Archosauria, Crocodylomorpha)from the Upper Triassic of Pant-y-Ffynnon Quarry (southern Wales). Papers in Palaeontology, 9(6), e1534.

Spiekman SNF, Butler RJ and Maidment, S C 2024. The postcranial anatomy and osteohistology of Terrestrisuchus gracilis (Archosauria, Crocodylomorpha) from the Late Triassic of Wales. Papers in Palaeontology, 10(4), e1577.

wiki/Terrestrisuchus
wiki/Aenigmaspina