Tunnel Mountain Formation
37 distinct taxa, from 56 fossil occurrences the Paleobiology Database records under this name, spanning 335–319 Mya.
Alberta, British Columbia · CA
37 taxa · 56 fossils · 335–319 MyaFiled under the Rocky Mountain Group. Members recorded: 3, 1, 4, 2.
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2 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
- Cleiothyridina sublamellosa
- Anthracospirifer leidyi
- Crinoidea
- Spirifer
- Amplexizaphrentis
- Bairdia
- Caninia
- Composita trinuclea
- Lithostrotion sinuosum
- Myalina
- Plectogyra
- Acanthopecten
- Acratia
- Archaeocidaris
- Cavellina
- Chlorophyta
- Composita
- Composita subquadrata
- Cryptostomata
- Derbya robusta
- Diaphragmus
- Dictyoclostus inflatus
- Dielasma
- Fenestella
- Fenestrata
- Girtyella
- Helodus
- Linoproductus
- Millerella
- Orbiculoidea
- Orthobairdia cestriensis
- Orthotetes kaskaskiensis
- Porifera
- Sansabella
- Spirifer increbescens
- Syringopora
- Syringopora aculeata
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.