Where: Victoria, Australia (37.8° S, 145.0° E: paleocoordinates 3.5° S, 175.0° E)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Ludlow (427.4 - 423.0 Ma)
• Crinoid localities placed in approximate sequence based on presence of correlatable brachiopods and other elements. Crinoids themselves are not biostratigraphically useful here. Late Aegiria thomas Zone (Ludlow).
• group of beds-level stratigraphic resolution
Environment/lithology: marine; siliciclastic sediments
Collection methods: "Virtually all the echinoderms known have been collected from quarries, road cuttings, creek beds or other man-made exposure. Structure within the Melbourne Trough consists of tight foliding wit long approximately N-S axes...Fossils occur in profusion in a few horizons...but most of the sedimentary sequence is unfossiliferous...The crinoids described herein come mainly from the few horizons where fossils are prolific and preservation is superb; very large numbers of articulated echinoderms occur there..."
Primary reference: P. A. Jell. 1999. Silurian and Devonian crinoids from central Victoria. Memoirs of the Queensland Museum 43(1):1-114 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 39139: authorized by Michael Foote, entered by Michael Foote on 21.05.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
Nassoviocrinus longibrachiatus Chapman 1903 Sea lily | |
Phimocrinus americanus Sea lily | |
"Trichocrinus morleyi" = Triacrinus
"Trichocrinus morleyi" = Triacrinus Sea lily |