Graylock Formation
27 distinct taxa, from 113 fossil occurrences the Paleobiology Database records under this name, spanning 201–193 Mya.
Oregon · US
27 taxa · 113 fossils · 201–193 MyaMacrostrat dates this rock 201–200 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
- Vermiceras
- Nevadaphyllites
- Angulaticeras
- Paradasyceras
- Eolytoceras
- Pseudaetomoceras
- Paradiscamphiceras dickinsoni
- Juraphyllites
- Gonioptychoceras
- Gyrophioceras morganense
- Agerchlamys boellingi
- Badouxia canadensis
- Discamphiceras
- Discamphiceras silberlingi
- Franziceras graylockense
- Paradiscamphiceras athabascanense
- Canoptum
- Canoptum merum
- Canoptum praeanulatum
- Discamphiceras ornatum
- Gyrophioceras mineralense
- Nevadaphyllites compressus
- Paradiscamphiceras elkhornense
- Schistophylloceras aulonotum
- Schlotheimia
- Sunrisites
- Vermiceras (Paracaloceras)
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.