Where: Ontario, Canada (46.2° N, 83.9° W: paleocoordinates 21.5° S, 56.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Gull River Formation, Franklinian (457.3 - 449.6 Ma)
• STRATIGRAPHIC RELATIONS: From the Gull River Fm, which locally overlies the Munising Fm (Cambrian) and is overlain by the Collingwood Fm (Late Ordovician). AGE: Middle Mohawkian or Early Franklinian; Caradocian; on the basis of conodont faunas. STRATIGRAPHIC POSITION: From throughout a 7.7m thick section.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified limestone and shale
Size class: macrofossils
Collected by Darby
Collection methods: bulk, chemical, sieve,
• COLLECTOR: D. G. Darby. REPOSITORY: Lapworth Museum of Geology, School of Geography, Earth & Environmental Sciences, University of Birmingham.
Primary reference: I. J. Sansom and D. K. Elliott. 2002. A thelodont from the Ordovician of Canada. Journal of Vertebrate Paleontology 22(4):867-870 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 90381: authorized by Austin Hendy, entered by Austin Hendy on 17.07.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Conodonta | |
Stereoconus gracilis conodont | |
Oulodus serratus conodont
Chirognathus duodactylus conodont | |
Drepanoistodus suberectus Branson and Mehl 1933 conodont | |
Belodina compressa Branson and Mehl 1933 conodont | |
Larolepis darbyi n. sp.
Larolepis darbyi n. sp. Sansom and Elliott 2002 | |
Pteraspidomorpha | |
Eriptychius sp. Walcott 1892 | |
Astraspis desiderata Walcott 1892 |