Where: Northwest Territories, Canada (62.4° N, 127.1° W: paleocoordinates 6.9° N, 51.6° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Delorme Formation, Sheinwoodian (433.4 - 430.5 Ma)
• talus sample from 126 m above base of the section
• bed-level stratigraphic resolution
Environment/lithology: offshore; lithified lime mudstone and lithified wackestone
Size class: macrofossils
Primary reference: J. K. Rigby and B. D. E. Chatterton. 1999. Silurian (Wenlock) demosponges from the Avalanche Lake area of the Mackenzie Mountains, southwestern District of Mackenzie, Northwest Territories, Canada. Palaeontographica Canadiana 16:1-43 [W. Kiessling/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 121299: authorized by Wolfgang Kiessling, entered by Uta Merkel on 02.12.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Sphinctozoa | |
|
| |
| Demospongiae | |
|
Astylospongia praemorsa Goldfuss 1826 demosponge
Carpospongia castanea Roemer 1861 demosponge | |
Anthaspidellidae indet., Archaeoscyphia attenuata, Archaeoscyphia scalaria, Archaeoscyphia annulata, Archaeoscyphia alternata, Archaeoscyphia rectilinearis, Patellispongia alternata, Patellispongia mackenziensis
Anthaspidellidae indet. Miller 1889 demosponge
Archaeoscyphia attenuata de Freitas 1989 demosponge
Archaeoscyphia scalaria de Freitas 1989 demosponge
Archaeoscyphia annulata Rigby 1973 demosponge
Archaeoscyphia alternata de Freitas 1989 demosponge
Archaeoscyphia rectilinearis de Freitas 1989 demosponge
Patellispongia alternata Rigby and Chatterton 1989 demosponge
Patellispongia mackenziensis Rigby and Chatterton 1999 demosponge | |
|
? Haplistion frustrum Rigby and Chatterton 1989 demosponge | |
|
Hindia sphaeroidalis Duncan 1879 demosponge | |
Belemnospongia epiradiatus n. sp.
Belemnospongia epiradiatus n. sp. Rigby and Chatterton 1999 demosponge | |