Assistance Formation
69 distinct taxa, from 111 fossil occurrences the Paleobiology Database records under this name.
The Paleobiology Database files this name in 3 countries. That can be one body of rock crossing a border, or two rocks that happen to share a name. The database does not say which, so nothing below is added across them.
Nunavut · CA
68 taxa · 105 fossils · 274–267 MyaMacrostrat dates this rock 285–267 Ma. Macrostrat’s own record
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19 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
- Timaniella harkeri
- Spiriferella loveni
- Spiriferella keilhavii
- Daubichites fortieri
- Terrakea arctica
- Phricodothyris
- Septacamera opitula
- Alispiriferella gydanensis
- Arcticalosia unispinosa
- Cyrtorostra laticostata
- Stenoscisma
- Sverdrupites
- Sverdrupites amundseni
- Sverdrupites harkeri
- Acanthopecten
- Anemonaria
- Arctitreta
- Arctitreta kempei
- Arctitreta triangularis
- Aviculopecten
- Bakevellia
- Betaneospirifer marcoui
- Biarmiceras
- Brachiokasakhstania osborni
- Brachiosvalbardia capitolina
- Cleiothyridina
- Cleiothyridina subexpansa
- Costatumulus germanicus
- Deltopecten
- Derbyia grandis
- Dielasma plica
- Dyscritellina fuglensis
- Edmondia
- Fasciculatia angulata
- Helicoprion davisii
- Horridonia
- Kochiproductus porrectus
- Lingula freboldi
- Linoproductus
- Medlicottia orbignyana
The 40 most often recorded, of 68.
Recorded under country code SJ
2 taxa · 3 fossils · 286–274 MyaMacrostrat dates this rock 285–267 Ma. Macrostrat’s own record
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1 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
Svalbard · NO
2 taxa · 3 fossils · 286–274 MyaMacrostrat dates this rock 285–267 Ma. Macrostrat’s own record
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1 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
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.