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Hammett, Comal County, Texas, USA
| Formation | Hammett |
|---|---|
| Age: | 125 - 122 Ma Early/Lower Cretaceous |
| Interval | Early Aptian |
| Number of Collections | 1 |
| Number of Occurrences | 5 |
Recorded Sample Locations
| Location | Region | Stratigraphic Name |
|---|---|---|
| Comal County [Hammett Fm] | Comal County, Texas, USA | Hammett |
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Austin Chalk | 83.5 - 70.6 Ma Late/Upper Cretaceous | chalk, marl, "carbonate", "limestone" | 31 |
| Buda Limestone | 93.5 - 66.0 Ma Late/Upper Cretaceous | limestone, sandstone | 187 |
| Cow Creek | 122 - 112 Ma Early/Lower Cretaceous | 6 |
Recorded Fossils
| Accepted Name | Hierarchy | Age |
|---|---|---|
 Dufrenoyia sp.genus | Animalia : Mollusca : Cephalopoda : Ammonitida : Deshayesitidae : Dufrenoyia | 125.45 - 122.46 Ma Early/Lower Cretaceous |
| Burckhardtites sp. genus | Animalia : Mollusca : Cephalopoda : Ammonoidea : Desmoceratidae : Burckhardtites | 125.45 - 122.46 Ma Early/Lower Cretaceous |
| Cheloniceras sp. genus | Animalia : Mollusca : Cephalopoda : Ammonoidea : Douvilleiceratidae : Cheloniceras | 125.45 - 122.46 Ma Early/Lower Cretaceous |
| Eodouvilleiceras sp. genus | Animalia : Mollusca : Cephalopoda : Ammonoidea : Douvilleiceratidae : Eodouvilleiceras | 125.45 - 122.46 Ma Early/Lower Cretaceous |
| Procheloniceras sp. genus | Animalia : Mollusca : Cephalopoda : Ammonoidea : Douvilleiceratidae : Procheloniceras | 125.45 - 122.46 Ma Early/Lower Cretaceous |
References
| Emerson B. L., Emerson J. H., et al (1994) Texas Cretaceous ammonites and nautiloids, Texas Paleontology Series 5, 1-439 |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
