Lily Creek Section B54a: Iverian, Australia
collected by BMR field party 1957-1960

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Olenida - Idahoiidae
Maladioidella doylei n. sp. Shergold 1980
Trilobita - Asaphida - Ceratopygidae
Cermatops sp. Shergold 1980
Cermatops vieta Shergold 1980
Trilobita - Corynexochida - Leiostegiidae
Prochuangia glabella n. sp. Shergold 1980
Agnostida - Diplagnostidae
Pseudagnostus (Pseudagnostus) aulax Shergold 1980
Pseudagnostus (Pseudagnostus) tricanthus Shergold 1980
Pseudagnostus (Pseudagnostus) parvus Shergold 1980
Agnostida - Agnostidae
Neoagnostus felix Shergold 1980
Connagnostus aversus Shergold 1980
see common names

Geography
Country:Australia State/province:Queensland
Coordinates: 22.0° South, 140.3° East (view map)
Paleocoordinates:24.9° North, 174.8° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Furongian
Stage: Jiangshanian 10 m.y. bin: Cambrian 5
Key time interval: Iverian Trilobite zone:  Peichiashania secunda - Prochuangia glabella
Age range of interval: 494 - 489.5 m.y. ago
Stratigraphy
Formation:Chatsworth
Local section:Lily Creek Local bed:24 m
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Should be Jiangshanian
Lithology and environment
Primary lithology:pyritic,peloidal lithified sandy grainstone
Secondary lithology: lithified lime mudstone
Includes fossils?Y
Lithology description: "Interlaminated sandy pelletal grainstone and shaly limestone; minor disseminated pyrite and some muscovite."
Environment:open shallow subtidal
Geology comments: "rocks were deposited in high energy shallow subtidal, intertidal and possibly aeolian environments"
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Disassociated major elements:all
Collection methods and comments
Collection methods:surface (in situ),mechanical,field collection
Reason for describing collection:biostratigraphic analysis
Collectors:BMR field party Collection dates:1957-1960
Metadata
Database number:228044
Authorizer:M. Hopkins Enterer:M. Hopkins
Modifier:P. Wagner Research group:marine invertebrate
Created:2022-11-18 13:56:10 Last modified:2023-01-21 21:00:28
Access level:the public Released:2022-11-18 13:56:10
Creative Commons license:CC BY
Reference information

Primary reference:
83129. J. H. Shergold. 1980. Late Cambrian trilobites from the Chatsworth Limestone, western Queensland. Bureau of Mineral Resources, Geology and Geophysics Bulletin 186:1-108 [M. Hopkins/M. Hopkins]