''Eutrichiurides'' is an extinct genus of prehistoric
cutlass fish
The cutlassfishes are about 45 species of predatory fish in the family Trichiuridae of the order Scombriformes found in seas throughout the world. Fish of this family are long, slender, and generally steely blue or silver in colour, giving rise ...
.
Similar and related genera include the
extant
Extant is the opposite of the word extinct. It may refer to:
* Extant hereditary titles
* Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English
* Extant taxon, a taxon which is not extinct, ...
''
Aphanopus'', ''
Trichiurides'' and ''
Trichiurus''.
These fishes lived in the
Eocene
The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene' ...
period, from 55.8 to 48.6 mya.
[
]
Species
Species within this genus include:
* '' Eutrichiurides orpiensis'' (Leriche, 1906)
* '' Eutrichiurides goberti'' (Casier, 1944)
* '' Eutrichiurides termieri'' (Arambourg)
* '' Eutrichiurides delheidi'' (Leriche, 1908)
Description
''Eutrichiurides'' species were very similar in form and build to modern snake mackerels, in that they were long and slender, blade-shaped fishes with elongated jaws possessing fangs and needle-shaped teeth.
Distribution
Fossils of ''Eutrichiurides'' have been found the Eocene
The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene' ...
fossil sediments of India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
, Pakistan
Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
and the United Kingdom.[
]
See also
* Prehistoric fish
The evolution of fish began about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and the vertebral column, leading to the first craniates and vertebrates. The first fish ...
* List of prehistoric bony fish
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People
* List (surname)
Organizations
* List College
Albert A. List College of Jewish Studies, known simply as List College, is the undergraduate school of the J ...
References
Prehistoric perciform genera
Paleogene fish of Asia
{{paleo-bony-fish-stub