Topsy Formation
25 distinct taxa, from 32 fossil occurrences the Paleobiology Database records under this name, spanning 23–5.3 Mya.
Alaska · US
25 taxa · 32 fossils · 23–5.3 MyaMacrostrat dates this rock 17–14 Ma. Macrostrat’s own record
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4 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
- Acila (Truncacila)
- Acila (Truncacila) taliaferroi
- Colus
- Lucinoma acutilineata
- Macoma (Macoma) golikovi
- Macoma albaria
- Spisula
- Anorthoscutum oregonensis
- Calliostoma
- Chlamys
- Clypeasterina
- Conchocele bisecta
- Cryptonatica affinis
- Echinarachnius alaskense
- Fusitriton oregonensis
- Macoma (Macoma) twinensis
- Mya
- Natica (Cryptonatica) oregonensis
- Neptunea (Neptunea)
- Neptunea (Sulcosipho) tabulata
- Nuculana
- Osteichthyes
- Periploma
- Periploma (Aelga)
- Turbinidae
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.