Irene Bay Formation
73 distinct taxa, from 149 fossil occurrences the Paleobiology Database records under this name, spanning 458–443 Mya.
Northwest Territories, Nunavut · CA
73 taxa · 149 fossils · 458–443 MyaFiled under the Cornwallis Group.
Macrostrat places this rock in the Cornwallis Group, and dates it 451–449 Ma. Macrostrat’s own record
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10 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
- Orthograptus fastigatus
- Anticostia lata
- Panderodus unicostatus
- Amorphognathus ordovicicus
- Belodina confluens
- Drepanoistodus suberectus
- Glyptograptus
- Oepikina
- Paroistodus
- Pseudobelodina dispansa
- Appendispinograptus supernus
- Bumastus
- Calapoecia coxi
- Strophomena
- Bathyurus
- Ceraurus
- Chasmatopora
- Dinorthis
- Glyptorthis insculpta
- Halysites
- Hiscobeccus capax
- Illaenus
- Orthograptus thorsteinssoni
- Panderodus
- Panderodus panderi
- Receptaculites
- Spyroceras
- Amplexograptus
- Basslerites
- Batostoma
- Batostoma winchelli
- Besselodus borealis
- Bucania
- Calapoecia
- Calapoecia anticostiensis
- Catenipora agglomeratiformis
- Catenipora delicatulus
- Ceraurinus daedalus
- Charactoceras
- Culumbodina
The 40 most often recorded, of 73.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.