farm Damplaats (55), Ladybrand: Hettangian - Sinemurian, South Africa
collected by R. M. H. Smith & D. B. Norman 1993

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Ornithischia indet. (Seeley 1888)
1 individual
erroneously listed as SAM-PK-K8027 (8 measurements)
    = Eocursor parvus n. gen., n. sp. Butler et al. 2007
Butler et al. 2007
SAM-PK-K8025
see common names

Geography
Country:South Africa State/province:Free State
Coordinates: 29.2° South, 27.3° East (view map)
Paleocoordinates:42.9° South, 1.1° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Early/Lower Jurassic
10 m.y. bin:Jurassic 1
Key time interval:Hettangian - Sinemurian
Age range of interval:201.40000 - 192.90000 m.y. ago
Stratigraphy
Geological group:Stormberg Formation:Elliot Member:Upper
Stratigraphic resolution:bed
Stratigraphy comments: Originally interpreted by Butler et al. (2007) as from the lower Elliot Formation, of Late Triassic age, McPhee et al. (2017, APP) re-interpreted it as from the base of the upper Elliot Formation, of Early Jurassic age.
Lithology and environment
Primary lithology:brown,red siltstone
Secondary lithology:desiccation cracks,fine,intraclastic argillaceous sandstone
Includes fossils?Y
Lithology description: "in the uppermost part of a 3 m-thick dark reddish brown massive siltstone just beneath the basal scour surface of a 1 m-thick fine-grained sandstone. Distinctive claystone-veneered lateral accretion surfaces within the sandstone display desiccation cracks and mudrock rip-up clasts"
Environment:dry floodplain
Geology comments: sandstone is "indicative of flash-flood flow conditions in a small meandering river", but layer with specimen is from "an open semi-arid floodplain"
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:good
Associated major elements:all
Fragmentation:occasional
Collection methods and comments
Collection methods:mechanical,field collection
Reason for describing collection:taxonomic analysis
Collectors:R. M. H. Smith & D. B. Norman Collection dates:1993
Metadata
Database number:73887
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2007-07-11 10:48:07 Last modified:2019-11-19 09:19:40
Access level:the public Released:2007-07-11 10:48:07
Creative Commons license:CC BY
Reference information

Primary reference:
35638. F. Knoll. 2004. Review of the tetrapod fauna of the "Lower Stormberg Group" of the main Karoo Basin (southern Africa): implication for the age of the Lower Elliot Formation. Bulletin de la Société Géologique de France 175(1):73-83 [R. Butler/R. Butler/M. Carrano]

Secondary references:

35641 R. J. Butler. 2010. The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa. Zoological Journal of the Linnean Society 160:648-684 [R. Butler/R. Butler]
24820ETE R. J. Butler, R. M. H. Smith, and D. B. Norman. 2007. A primitive ornithischian dinosaur from the Late Triassic of South Africa, and the early evolution and diversification of Ornithischia. Proceedings of the Royal Society of London B 274:2041-2046 [M. Carrano/M. Carrano]
32304 R. B. Irmis, W. G. Parker, S. J. Nesbitt and J. Liu. 2007. Early ornithischian dinosaurs: the Triassic record. Historical Biology 19(1):3-22 [R. Butler/R. Butler/M. Carrano]
66148 B. W. McPhee, E. M. Bordy, L. Sciscio and J. N. Choniere. 2017. The sauropodomorph biostratigraphy of the Elliot Formation of southern Africa: Tracking the evolution of Sauropodomorpha across the Triassic–Jurassic boundary. Acta Palaeontologica Polonica 62:441-465 [R. Butler/R. Butler]