Hillard Limestone
35 distinct taxa, from 56 fossil occurrences the Paleobiology Database records under this name, spanning 507–487 Mya.
Alaska · US
35 taxa · 56 fossils · 507–487 MyaMacrostrat dates this rock 513–470 Ma. Macrostrat’s own record
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6 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
- Trilobita
- Semisphaerocephalus latus
- Kootenia serrata
- Lejopyge laevigatus
- Spencella montanensis
- Cedaria
- Hemirhodon
- Onchonotopsis
- Prohedinia
- Spencella
- Acidusus aculeatus
- Acrothele
- Acrotretida
- Alokistocare
- Athabaskiella
- Bathyuriscidella
- Bathyuriscus punctatus
- Bolaspidella
- Corynexochidae
- Corynexochus plumula
- Dolichometopidae
- Dorypyge
- Elrathia
- Hypagnostus
- Itagnostus gaspensis
- Kootenia
- Lejopyge
- Marjumia callas
- Marjumia transversa
- Modocia
- Olenaspella evansi
- Phalagnostus
- Pseudagnostus
- Ptychagnostus
- Zacanthoides
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.