Erismatopterus is an extinct genus of percopsiform fish which lived during the early to middle Eocene epoch and containing the single species Erismatopterus levatus. A report of the genus in sediments of similar age in Washington State have been discredited. Erismatopterus is treated as part of the family Percopsidae, but formerly was the type genus of the extinct family Erismatopteridae. The genus is closely related to Amphiplaga of related lake sediments. Shoaling behavior has been reported from a mass mortality fossil of E. levatus and attributed as a predator-evasion response behavior.
species Erismatopterus levatus. A report of the genus in sediments of similar age in Washington State have been discredited. Erismatopterus is treated...
lakes, however Amphiplaga is strictly found in Fossil lake only, while Erismatopterus is uncommon in Lake Uinta but common in certain mass mortality layers...
consider it a percopsisform and related to the sympatric percopsiform Erismatopterus. However, an affinity to the Polymixiiformes or Perciformes has also...
1905 †Libotoniidae Grande, 1988] Genus †Amphiplaga Cope 1877 Genus †Erismatopterus Cope 1870 Genus †Libotonius Wilson 1977 Genus †Massamorichthys Murray...
Dunkle in 1962 and 1965 as members of the genera Amyzon, Tricophanes, Erismatopterus and an undefined salmonid. Pearson sent almost all of the specimens...
and possible behavioural rules used in a group of fossil specimens of Erismatopterus levatus from the Eocene Green River Formation is published by Mizumoto...
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