Yegua Formation
172 distinct taxa, from 309 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.
Texas · US
166 taxa · 291 fossils · 48–38 MyaFiled under the Claiborne Group.
Macrostrat places this rock in the Claiborne Group, and dates it 39–38 Ma. Macrostrat’s own record
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9 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
- Cythere
- Eponides
- Ceratobulimina
- Cythereis
- Cytheridea (Cytheridea) mulleri
- Guttulina problema
- Hastula
- Microdrillia
- Polymorphina
- Cristellaria rotulata
- Cytherella
- Gemmula (Coronia)
- Pyramidella
- Quinqueloculina
- Astyris
- Bairdia
- Buccitriton texanum
- Caryocorbula deusseni
- Cristellaria
- Cytheropteron
- Ficus
- Hesperiturris nodocarinatus
- Latirus moorei
- Monoptygma
- Neverita limula
- Polinices
- Quinqueloculina seminulum
- Trypanotoma
- Turritella
- Ancilla staminea
- Architectonica
- Bathyarca
- Bonellitia
- Buccitriton
- Cadulus
- Calorhadia
- Cochlespirella
- Conomitra texana
- Corbula
- Lapparia
The 40 most often recorded, of 166.
Tamaulipas · MX
9 taxa · 18 fossils · 48–38 MyaFiled under the Claiborne Group.
Macrostrat places this rock in the Claiborne Group, and dates it 39–38 Ma. Macrostrat’s own record
Loading coastlines…
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
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.