The Bashi Formation is a

geologic formation A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...

Alabama (We dare defend our rights) , anthem = " Alabama" , image_map = Alabama in United States.svg , seat = Montgomery , LargestCity = Huntsville , LargestCounty = Baldwin County , LargestMetro = Greater Birmingham , area_total_km2 = 135,7 ...

and

Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Mis ...

. It is named for

Bashi Creek Bashi Creek, also historically known as Bashai Creek, is a tributary of the Tombigbee River in northern Clarke County in Alabama. Location Bashi Creek originates near Bashi, at coordinates of , and discharges into the Tombigbee River near Wood ...

in northern

Clarke County, Alabama Clarke County is a county located in the southwestern part of the U.S. state of Alabama. As of the 2020 census, the population was 23,087. The county seat is Grove Hill. The county's largest city is Jackson. The county was created by the l ...

, which cuts through some of its exposures. It preserves

fossils A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

dating back to the

Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " ...

period, or

Wasatchian The Wasatchian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 55,400,000 to 50,300,000 years BP lasting . It is usually c ...

in the NALMA classification.Bashi Formation
at

Fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cre ...

.org

Fossil content

The following fossils have been reported from the formation: ;Reptiles * '' Palaeophis cf. littoralis''Parmley & Case, 1988 * '' Palaeophis virginianus'' ;FishCase & Leggett, 1999Case, 1994 * ''

Coupatezia woutersi ''Coupatezia'' is a prehistoric genus of ray in the family Dasyatidae whose fossils are found in strata dating from the Maastrichtian stage until the last species' extinction during the Middle Eocene. These rays were found shallow seas in Euro ...

'' * ''

Dasyatis tricuspidatus ''Dasyatis'' ( Greek δασύς ''dasýs'' meaning rough or dense and βατίς ''batís'' meaning skate) is a genus of stingray in the family Dasyatidae that is native to the Atlantic, including the Mediterranean. In a 2016 taxonomic revis ...

'' * ''

Myliobatis dixoni ''Myliobatis'' is a genus of eagle rays in the family Myliobatidae. Description ''Myliobatis'' species can reach a width up to about . Their bodies consist of a rhomboidal disc, wider than long, with one dorsal fin. The head is broad and sho ...

'' * ''

Archaeomanta melenhorsti ''Archaeomanta'' is an extinct genus of eagle ray that lived from the Cretaceous to the middle Neogene. It is one of the oldest known manta ray relatives. It is known from North Africa, the Middle East, the U.K., the U.S., and Uzbekistan U ...

'' * ''

Burnhamia daviesi Burnhamia may refer to: * 834 Burnhamia, an asteroid * ''Burnhamia'', an extinct genus of devil rays {{disambig ...

'' * ''

Burnhamia fetahi Burnhamia may refer to: * 834 Burnhamia, an asteroid * ''Burnhamia'', an extinct genus of devil rays {{disambig ...

'' * '' Meridiania convexa'' * ''

Platyrhina dockeryi ''Platyrhina'' is a genus of rays in the family Platyrhinidae, containing three species. They are native to the warm-temperate to tropical marine waters in the western Pacific Ocean. They are little-known bottom-dwellers that feed on small ...

'' * ''

Rhinobatos sp. ''Rhinobatos'' is a genus of fish in the Rhinobatidae family. Although previously used to encompass all guitarfishes, it was found to be polyphyletic, and recent authorities have transferred many species included in the genus to ''Acroteriobatu ...

'' * '' Eotorpedo jaeckeli'' * '' Striatolamia macrota'' * '' Anomotodon sp.'' * ''

Cretolamna aschersoni ''Cretalamna'' is a genus of extinct otodontid shark that lived from the latest Early Cretaceous to Eocene epoch (about 103 to 46 million years ago). It is considered by many to be the ancestor of the largest sharks to have ever lived, '' Otodu ...

'' * ''

Cretolamna lerichei ''Cretalamna'' is a genus of extinct otodontid shark that lived from the latest Early Cretaceous to Eocene epoch (about 103 to 46 million years ago). It is considered by many to be the ancestor of the largest sharks to have ever lived, '' Otodu ...

'' * ''

Odontaspis borodini ''Odontaspis'' (from el, ὀδούς 'tooth') and el, ἀσπίς 'shield') is a genus of sand shark with two extant species. Description Bigeye sand tigers can reach a length of about and smalltooth sand tigers of about 4.1 m. The ...

'' * ''

Odontaspis speyeri ''Odontaspis'' (from el, ὀδούς 'tooth') and el, ἀσπίς 'shield') is a genus of sand shark with two extant species. Description Bigeye sand tigers can reach a length of about and smalltooth sand tigers of about 4.1 m. They ...

'' * '' Odontaspis winkleri'' * '' Pseudodontaspis lauderdalensis'' * '' Brachycarcharias mississippiensis'' * ''

Physogaleus americanus ''Physogaleus'' is a small genus of prehistoric shark that lived from the Eocene to Miocene epoch In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch ...

'' * ''

Physogaleus tertius ''Physogaleus'' is a small genus of prehistoric shark that lived from the Eocene to Miocene epochs. Description ''Physogaleus'' are only known from their fossil teeth and isolated vertebra. It has teeth similar to the modern tiger shark, but ...

'' * ''

Abdounia subulidens ''Abdounia'' is an extinct genus of requiem shark which lived during the Paleogene period. It is mainly known from isolated teeth. It is one of the earliest requiem sharks, and attained widespread success in North America, Europe, and Africa. L ...

'' * ''

Abdounia beaugei ''Abdounia beaugei'' is an extinct species of requiem shark from the Paleocene and Eocene epochs of the Paleogene The Paleogene ( ; British English, also spelled Palaeogene or Palæogene; informally Lower Tertiary or Early Tertiary) is a geolo ...

'' * ''

Galeus sp. ''Galeus'' is a genus of catshark, belonging to the family Scyliorhinidae, commonly known as sawtail catsharks in reference to a distinctive saw-toothed crest of enlarged dermal denticles, found along the upper edges of their caudal fins. They a ...

'' * '' Microscyliorhinus leggetti'' * '' Scyliorhinus gilberti'' * ''

Galeorhinus affini The school shark (''Galeorhinus galeus'') is a houndshark of the family Triakidae, and the only member of the genus ''Galeorhinus''. Common names also include tope, tope shark, snapper shark, and soupfin shark. It is found worldwide in temperate ...

'' * ''

Galeorhinus minor The school shark (''Galeorhinus galeus'') is a houndshark of the family Triakidae, and the only member of the genus ''Galeorhinus''. Common names also include tope, tope shark, snapper shark, and soupfin shark. It is found worldwide in temperat ...

'' * '' Heterodontus sowasheense'' * ''

Ginglymostoma subafricanum ''Ginglymostoma'' is a genus of shark in the family Ginglymostomatidae. There are two members in the genus. Members of this genus eat small fish and crustaceans, and are commonly quite lethargic unless provoked. Members of this genus have the abi ...

'' * '' Nebrius thielensis'' * '' Conger meridies''

References

Bibliography

* * * {{cite LSA , first=D. , last=Parmley , first2=G. R. , last2=Case , year=1988 , title=Palaeopheid snakes from the Gulf Coastal region of North America , journal=

Journal of Vertebrate Paleontology The ''Journal of Vertebrate Paleontology'' is a bimonthly peer-reviewed scientific journal that was established in 1980 by Jiri Zidek (University of Oklahoma). It covers all aspects of vertebrate paleontology, including vertebrate origins, evol ...

, volume=8 , pages=334–339 Geologic formations of Alabama Geologic formations of Mississippi Paleogene Alabama Paleogene Mississippi Ypresian Stage Wasatchian Marl formations Shallow marine deposits Paleontology in Alabama Paleontology in Mississippi

Fossil content

See also

References

Bibliography