Midway Formation
36 distinct taxa, from 88 fossil occurrences the Paleobiology Database records under this name.
The Paleobiology Database files this name in 2 countries. That can be one body of rock crossing a border, or two rocks that happen to share a name. The database does not say which, so nothing below is added across them.
Nuevo Leon · MX
26 taxa · 78 fossils · 66–56 MyaMembers recorded: Upper, Lower.
Macrostrat dates this rock 66–57 Ma. Macrostrat’s own record
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5 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
- Ostrea
- Cerastoderma
- Mesalia
- Odontogryphaea thirsae
- Vokesula aldrichi
- Ledina smirna
- Priscoficus
- Calorhadia (Litorhadia) santaanai
- Gyrodes (Sigaretopsis)
- Natica
- Orthosurcula
- Tornatellaea
- Turritella
- Aporrhaidae
- Athleta (Volutospina)
- Calyptraphorus
- Hemisurcula
- Musculus
- Pseudoliva
- Cardiomya
- Cimomia vaughani
- Gadila
- Nassarius (Tritiaria)
- Perissolax
- Polinices
- Teredo
Texas · US
10 taxa · 10 fossils · 56–34 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
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.