| Sweetognathidae | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | † Conodonta |
| Order: | † Ozarkodinida |
| Family: | † Sweetognathidae Ritter 1986 [1] |
| Genera | |
| |
Sweetognathidae is an extinct family of conodonts in the order Ozarkodinida.
| Sweetognathidae | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | † Conodonta |
| Order: | † Ozarkodinida |
| Family: | † Sweetognathidae Ritter 1986 [1] |
| Genera | |
| |
Sweetognathidae is an extinct family of conodonts in the order Ozarkodinida.
Conodonts are an extinct group of agnathan (jawless) vertebrates resembling eels, classified in the class Conodonta. For many years, they were known only from their tooth-like oral elements, which are usually found in isolation and are now called conodont elements. Knowledge about soft tissues remains limited. They existed in the world's oceans for over 300 million years, from the Cambrian to the beginning of the Jurassic. Conodont elements are widely used as index fossils, fossils used to define and identify geological periods. The animals are also called Conodontophora to avoid ambiguity.
In the geologic timescale, the Artinskian is an age or stage of the Permian. It is a subdivision of the Cisuralian Epoch or Series. The Artinskian likely lasted between 290.1 and 283.5 million years ago (Ma) according to the most recent revision of the International Commission on Stratigraphy (ICS) in 2022. It was preceded by the Sakmarian and followed by the Kungurian.
In the geologic timescale, the Asselian is the earliest geochronologic age or lowermost chronostratigraphic stage of the Permian. It is a subdivision of the Cisuralian Epoch or Series. The Asselian lasted between 298.9 and 293.52 million years ago (Ma). It was preceded by the Gzhelian and followed by the Sakmarian.
In the geologic timescale, the Roadian is an age or stage of the Permian. It is the earliest or lower of three subdivisions of the Guadalupian Epoch or Series. The Roadian lasted between 273.01 and 266.9 million years ago (Ma). It was preceded by the Kungurian and followed by the Wordian.
In the geologic timescale, the Wordian is an age or stage of the Permian. It is the middle of three subdivisions of the Guadalupian Epoch or Series. The Wordian lasted between 266.9 and 264.28 million years ago (Ma). It was preceded by the Roadian and followed by the Capitanian.
In the geologic timescale, the Wuchiapingian or Wujiapingian is an age or stage of the Permian. It is also the lower or earlier of two subdivisions of the Lopingian Epoch or Series. The Wuchiapingian spans the time between 259.51 and 254.14 million years ago (Ma). It was preceded by the Capitanian and followed by the Changhsingian.
In the geologic time scale, the Changhsingian or Changxingian is the latest age or uppermost stage of the Permian. It is also the upper or latest of two subdivisions of the Lopingian Epoch or Series. The Changhsingian lasted from 254.14 to 251.902 million years ago (Ma). It was preceded by the Wuchiapingian and followed by the Induan.
Hindeodus is an extinct genus of conodonts in the family Anchignathodontidae. The generic name Hindeodus is a tribute to George Jennings Hinde, a British geologist and paleontologist from the 1800s and early 1900s. The suffix -odus typically describes the animal's teeth, essentially making Hindeodus mean Hinde-teeth.
The Phosphoria Formation of the western United States is a geological formation of Early Permian age. It represents some 15 million years of sedimentation, reaches a thickness of 420 metres (1,380 ft) and covers an area of 350,000 square kilometres (140,000 sq mi).
Anchignathodontidae is an extinct conodont family.
Sweetognathus is an extinct genus of conodonts in the family Sweetognathidae that evolved at the beginning of the Permian period, in near-equatorial, shallow-water seas.
Diplognathodus is an extinct genus of conodonts in the family Anchignathodontidae. Specimens are found in Carboniferous and Permian formations.
Clarkina is an extinct genus of conodonts. It is considered to be an offshore, outer shelf or basinal, deep-water taxon.
Neogondolellla is an extinct genus of conodonts. Neogondolela regalis was re-evaluated in 2018 by Martyn Lee Golding.
Neostreptognathodus is an extinct genus of conodonts from the Cisuralian.
Vjalovognathus is an extinct genus of conodonts.
Mesogondolella is an extinct genus of conodonts.
Meiognathus is an extinct genus of conodonts belonging to the family Sweetognathidae.
Streptognathodus is an extinct genus of conodonts from the Late Carboniferous to Early Permian.
Neospathodus is an extinct genus of conodonts.
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