Imuruk Volcanics Formation
47 distinct taxa, from 49 fossil occurrences the Paleobiology Database records under this name, spanning 7.2–5.3 Mya.
Alaska · US
47 taxa · 49 fossils · 7.2–5.3 MyaLoading coastlines…
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
- Acrotrichis
- Agonum
- Amara
- Arrhenopeplus tesserula
- Bembidion (Peryphus)
- Bembidion (Plataphus)
- Bembidion (Trepanedoris)
- Byrrhus
- Camponotus
- Carabus (Aulonocarabus) truncaticollis
- Carex
- Cepheus corae
- Ceratoppia
- Ceutorhynchus
- Chrysolina
- Cyperus
- Diapriinae
- Dyschirius
- Enicmus
- Georissus
- Helophorus
- Kalissus nitidus
- Lathrobium
- Leistus
- Leptothorax
- Micridium
- Micropeplus hoogendorni
- Micropeplus hopkinsi
- Namunaria
- Nebria
- Omaliinae
- Oribatella
- Patrobus septentrionis
- Picea
- Picea mariana
- Picea sitchensis
- Pinus
- Pterostichus (Lenapterus) vermiculosus
- Pterostichus (Melanius) corvinus
- Ptinidae
The 40 most often recorded, of 47.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.