St. Marys Formation
71 distinct taxa, from 75 fossil occurrences the Paleobiology Database records under this name, spanning 12–7.2 Mya.
Virginia, Maryland · US
71 taxa · 75 fossils · 12–7.2 MyaFiled under the Chesapeake Group. Members recorded: Little Cove Point.
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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
- Amia
- Lepisosteus
- Psephophorus polygonus
- Aetobatus
- Albula
- Alepisaurus
- Alnus
- Alopias
- Amaranthaceae
- Ambrosia
- Apalone
- Apalone ferox
- Apiaceae
- Archosargus
- Asteraceae
- Astroscopus countermani
- Balaenoptera
- Betula
- Callinectes sapidus
- Cammackacetus hazenorum
- Cancer borealis
- Cancer nancei
- Carcharhinus
- Carya
- Chilomycterus
- Chrysemys isoni
- Corylus
- Cyperaceae
- Dasyatis
- Fagus
- Floridemys nancei
- Hemipristis serra
- Ictalurus
- Kinosternidae
- Lagodon rhomboides
- Lepidochelys kempii
- Liquidambar
- Lophocetus calvertensis
- Mactrodesma subponderosa
- Merluccius
The 40 most often recorded, of 71.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.