Laval Formation
67 distinct taxa, from 80 fossil occurrences the Paleobiology Database records under this name, spanning 471–457 Mya.
Quebec · CA
67 taxa · 80 fossils · 471–457 MyaFiled under the Chazy Group. Members recorded: St. Martin, Beaconsfield.
Macrostrat places this rock in the Chazy Group, and dates it 462–459 Ma. Macrostrat’s own record
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5 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
- Raphistoma
- Rostricellula
- Blastoidocrinus
- Glyptomena
- Lingulella
- Malocystites murchisoni
- Multicostella
- Palaeocystites
- Trypanites
- Valcourea
- Atelelasma
- Basilicus
- Batostoma
- Batostoma chazyensis
- Billingsaria
- Bolboporites
- Bucania
- Bumastus
- Calliops
- Camerella
- Cameroceras
- Canadocystis
- Cheirocrinus
- Cleionychia montrealensis
- Conularina
- Crinoidea
- Ctenodonta
- Cyclora
- Dorytreta
- Eoharpes
- Eurychilina
- Girvanella
- Glyptorthis
- Helicotoma
- Hesperorthis
- Isotelus
- Kawina
- Leperditella
- Lichenaria
- Lophospiridae
The 40 most often recorded, of 67.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.