Tsikoane tracksite (Jurassic of Lesotho)

Where: Leribe, Lesotho (28.9° S, 28.0° E: paleocoordinates 41.7° S, 2.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Clarens Formation (Stormberg Group), Pliensbachian (190.8 - 182.7 Ma)

• Cave Sandstone

•Age according to Bordy et al. 2021 for zones A7 and B1–B7

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; tabular, fine-grained, medium, yellow sandstone and green mudstone

• "The lowermost part of the conformably overlying Clarens Formation (Figure 1(b, 3a)) is the main track-bearing unit at Tsikoane. It comprises laterally continuous, cream-coloured, sheet-like, fine- to medium-grained sandstones that range in thickness from 0.1 to 1.5 m (Figure 3(a)). These track-bearing, tabular sandstones are horizontally laminated and interbedded with green mudstone films (drapes) and layers (<0.2 m thick) that preserve desiccation cracks especially in the south-eastern part of the ichnosite (Figure 3(g)). In the north-western part of the ichnosite, a localised upward-fining unit comprises massive, intraformational, mud-pebble conglomerates at the base that gives way to interbedded green mudstones and grey and cream-brown, horizontally laminated, tabular, fine-grained sandstones (Figure 3(a, h)). Distinct U-shaped structures disrupt the interbedded part of this well-bedded, upward-fining unit (Figure 3(h)). The rest of the Clarens Formation at the Tsikoane ichnosite (Figure 1(b, 3a)) is characterised by 1 to 5 m thick, medium- to fine-grained sandstones that are mostly massive and rarely cross-bedded."

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collected by Dieterlen, Dornan in the 1990s

Collection methods: surface (float), surface (in situ),

Primary reference: F. Ellenberger and P. Ellenberger. 1958. Principaux types de pistes de Vertébrés dans les couches du Stormberg au Basutoland (Afrique du Sud) (Note préliminaire) [Principal types of vertebrate prints in the Stormberg beds of Basutoland (South Africa) (preliminary note)]. Comptes Rendus de la Société géologique de France 1958:65-67 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 55996: authorized by Matthew Carrano, entered by Matthew Carrano on 10.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda - Grallatoridae
cf. Eubrontes sp.1, "cf. Grallator sp." = Grallator1, "Kainotrisauropus morijiensis" = Grallator2
cf. Eubrontes sp.1 Hitchcock 1845 theropod
Morphotypes III, IV, and possibly also Morphotype V
"cf. Grallator sp." = Grallator1 Hitchcock 1858 theropod
Morphotype I
"Kainotrisauropus morijiensis" = Grallator2 theropod
 Theropoda -
cf. Kayentapus sp.1 Welles 1971 theropod
Morphotype II