Eoholocentrum
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''Eoholocentrum'' ("dawn '' Holocentrum''") is an extinct genus of prehistoric marine
ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...
that lived during the early
Eocene The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...
. It contains a single species, ''E. macrocephalum'', known from the
Early Eocene In the geologic timescale the Ypresian is the oldest age (geology), age or lowest stage (stratigraphy), stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by th ...
of Monte Bolca, Italy. It resembled and was closely related to modern squirrelfishes and soldierfishes, and appears to have been more closely related to squirrelfishes. It can be considered a basal or
stem Stem or STEM most commonly refers to: * Plant stem, a structural axis of a vascular plant * Stem group * Science, technology, engineering, and mathematics Stem or STEM can also refer to: Language and writing * Word stem, part of a word respon ...
member of the Holocentrinae. It was originally erroneously named by Volta (1796) as a fossil specimen of "''Holocentrus sogo''" (a synonym for '' Holocentrus adscensionis'') and then as a specimen of "''Chaetodon saxatilis''" (a synonym for '' Abudefduf saxatilis''). It was described as its own species in ''Holocentrus'' by de Blainville (1818) before being placed in its own genus in 1975.


See also

*
Prehistoric fish __NOTOC__ 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 ...
*
List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ...


References

{{beryciformes-stub Monotypic prehistoric ray-finned fish genera Ypresian genera Eocene fish of Europe Fossils of Italy Fossil taxa described in 1975