| Miguashaia | |
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| Scientific classification | |
| Kingdom: | |
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| Genus: | Miguashaia |
| Species: | M. bureaui |
| Binomial name | |
| Miguashaia bureaui | |
Miguashaia is a genus of prehistoric lobe-finned fish which lived during the Devonian period. Miguashaia is the most primitive coelacanth fish.
Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish, or even living fossils, due to their current rarity and similarity to extinct forms. Fish which have become recently extinct are not usually referred to as prehistoric fish. They were very different from what we have today. They likely were larger and had tougher scales.
Salminops is an extinct genus of prehistoric bony fish that lived during the Cenomanian known from USA and Portugal.
Oligopleurus is an extinct genus of prehistoric bony fish that lived during the Kimmeridgian stage of the Late Jurassic epoch.
Cosmoptychius is an extinct genus of prehistoric bony fish that lived during the Tournaisian stage of the Mississippian epoch.
Ceramurus is an extinct genus of prehistoric bony fish.
Yuchoulepis is an extinct genus of prehistoric ray-finned fish.
Todiltia is an extinct genus of prehistoric bony fish.
Syntegmodus is an extinct genus of prehistoric bony fish. It is known from the Niobrara Formation of Kansas.
Stegotrachelus is an extinct genus of prehistoric bony fish that lived during the Middle Devonian epoch in what is now Shetland, Scotland.
Seefeldia is an extinct genus of prehistoric ray-finned fish.
Gyrolepis is an extinct genus of prehistoric ray-finned fish from the Middle-Late Triassic epochs in what is now Europe. It is known both from complete specimens and isolated skeletal elements, such as scales or teeth.
Litoptychius is an extinct genus of prehistoric bony fish.
Naxilepis is an extinct genus of prehistoric bony fish.
Notelops is an extinct genus of prehistoric ray-finned fish.
Orvikuina is an extinct genus of prehistoric bony fish.
Pholidoctenus is an extinct genus of prehistoric ray-finned fish.
Pholidolepis is an extinct genus of prehistoric ray-finned fish.
Pholidophoroides is an extinct genus of prehistoric ray-finned fish.
Fish was thought to be a ruler of the Lower Egypt or a part of Lower Egypt during the late prehistoric period. He most likely never existed and is a modern invention due to misunderstanding of early hieroglyphic signs. Fish is known only from the Fish hieroglyph and was possibly a king of the prehistoric Dynasty 0 of Predynastic Egypt.
Diplacanthus is an extinct genus of Mid to Late Devonian fish in the class Acanthodii, known as spiny sharks.
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