Where: British Columbia, Canada (56.1° N, 123.0° W: paleocoordinates 28.3° N, 41.9° W)
When: upper Metapolygnathus nodusus conodont zone, Baldonnel Formation, Carnian (237.0 - 228.0 Ma)
• upper Carnian
•ammonoid zone - Tropites welleri II
•icthyolith zone - Synechodus multinodosus
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Collected by M. J. Orchard in 1981
Collection methods: acetic
• Repository: National Type Collection of Invertebrate and Plant Fossils at the Geological Survey of Canada
•601 Booth St, Ottawa, Ontario, K1A0E8
Primary reference: M. J. Johns, C. R. Barnes, and M. J. Orchard. 1997. Taxonomy and biostratigraphy of middle and late Triassic Elasmobranch Ichthyoliths from Northeastern British Columbia. Geological Survey of Canada Bulletin 502:1-238 [M. Clapham/P. Vazquez/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 150054: authorized by Matthew Clapham, entered by Priscilla Vazquez on 31.08.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
| Osteichthyes | |
|
| |
| Chondrichthyes | |
|
Synechodus sp. Woodward 1888 elasmobranch
Synechodus multinodosus Johns 1997 elasmobranch
Synechodus cf. multinodosus Johns 1997 elasmobranch | |
Sacrisubcorona circabasis, Lobaticorona tumiditabella, Lobaticorona floriditabella, Undulaticorona propensa, Complanicorona glabra, Complanicorona rugosimargines, Ornatilabrilancea circacarina, Labascicorona mediflexura
Sacrisubcorona circabasis Johns et al. 1997 elasmobranch
Lobaticorona tumiditabella Johns 1997 elasmobranch
Lobaticorona floriditabella Johns 1997 elasmobranch
Undulaticorona propensa Johns 1997 elasmobranch
Complanicorona glabra Johns 1997 elasmobranch
Complanicorona rugosimargines Johns 1997 elasmobranch
Ornatilabrilancea circacarina Johns 1997 elasmobranch
Labascicorona mediflexura Johns 1997 elasmobranch | |