Where: Alaska (56.4° N, 133.9° W: paleocoordinates 1.4° N, 72.0° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Cornwallis Formation, Norian (228.0 - 208.5 Ma)
• Alexander Terrane
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified limestone
Size class: macrofossils
Preservation: cast
Collection methods: peel or thin section,
Primary reference: B. Senowbari-Daryan, A. H. Caruthers, and G.D. J.R. Stanley. 2008. The First Upper Triassic Silicified Hypercalcified Sponges from the Alexander Terrane, Gravina Island and Keku Strait, Southeast Alaska. Journal of Paleontology 82(2):344-350 [W. Kiessling/A. Girndt]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 80015: authorized by Wolfgang Kiessling, entered by Antje Girndt on 01.04.2008, edited by Uta Merkel
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
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Crassistella parvula1, Crassistella juvavica1, Pamiroseris meriani1, "Kuhnastraea cowichanensis" = Ampakabastraea cowichanensis1
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Distichophyllia norica1, Paracuifia jennieae n. sp.1, Retiophyllia cf. frechi1, Retiophyllia cf. robusta1, Retiophyllia cf. norica1, Kuhnastraea decussata1
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Calcarea | |
Stellispongia cf. subsphaerica Dieci et al. 1968 calcareous sponge | |
Demospongiae | |
Parauvanella cf. ferdowsensis Senowbari-Daryan 2005 demosponge | |
Rhynchonellata | |
Dagyspirifer fascicostata n. gen. n. sp.2 Hoover 1991
Pseudospondylospira perplexa2 Hoover 1991 |