Reference articles on history, science, culture and more
Surprise meSurprise meSubscribe
Encyclopedia

Achrestogrammus

Extinct genus of fishes

Wikipedia contributorsAdapted for Fathomly · View authors
1 min read
Source updated June 3, 2026

Achrestogrammus is an extinct genus of prehistoric marine ray-finned fish that lived during the Upper Miocene subepoch of California. It contains a single species, A. achrestus, known from diatomite deposits of the Monterey Formation. Although known from only an incomplete specimen, it is thought to be an early greenling.

01Fossils

According to Paleobiology Database in 2025, this genus has no referenced fossils or species.

Watch videos about AchrestogrammusExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “Achrestogrammus”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.

Continue exploring

Related topics

Lists of prehistoric 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.

List of prehistoric bony fish genera

This list of prehistoric bony fish is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be bony fish, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered members of osteichthyes.