Where: England, United Kingdom (53.3° N, 2.6° W: paleocoordinates 16.1° N, 10.4° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Helsby Sandstone Formation, Anisian (247.2 - 242.0 Ma)

• "Tarporley Siltstone Formation, Lower-Middle Anisian, Middle Triassic" (King et al. 2005)

•"Maidwell (1911) adopted the name Rhynchosauroides for some Lower Triassic footprints from the Helsby Sandstone (formerly Keuper Sandstone)" (Valentini et al. 2007)

Environment/lithology: terrestrial; sandstone

Size class: macrofossils

Preservation: trace

Collected by W. Williamson in 1867

Collection methods: surface (in situ),

• LU - University of Liverpool Art and Heritage Collections (Geology), UK; MANCH - Manchester Museum, UK

Primary reference: T. C. Winkler. 1886. Histoire de l’Ichnologie. Étude Ichnologique sur les Empreintes de Pas d’Animaux Fossiles, Suivie de la Description des Plaques à Impressions d’Animaux qui se Trouvent au Musée Teyler [History of Ichnology. Ichnological Study of Fossil Animal Footprints, Followed by the Description of Slabs with Animal Impressions found in Teyler’s Museum] iv-200 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 197296: authorized by Alex Dunhill, entered by Bethany Allen on 01.11.2018

Creative Commons license: CC BY (attribution)