Heceta Limestone
23 distinct taxa, from 24 fossil occurrences the Paleobiology Database records under this name, spanning 443–420 Mya.
Alaska · US
23 taxa · 24 fossils · 443–420 MyaMacrostrat dates this rock 431–415 Ma. Macrostrat’s own record
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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
- Pachystrophia gotlandicus
- Atrypa
- Atrypoidea
- Atrypoidea scheii
- Australonema
- Beraunia bifrons
- Beraunia bohemica
- Bucanopsis volgulica
- Coelocaulus karlae
- Dentalium hecetaensis
- Euomphalopterus liratus
- Haplospira craigi
- Hecetastoma gehrelsi
- Kirkospira glacialis
- Kirkospira tongassensis
- Medfracaulus turriformis
- Medfrazyga gilmulli
- Morania wagneri
- Nanukidium cunninghamensis
- Rhizophyllum
- Rhytiodentalium
- Spinicharybdis boucoti
- Spinicharybdis krizi
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.