Ceratoichthys
Encyclopedia
Ceratoichthys pinnatiformis is an extinct species of lookdown
Lookdown
The lookdown, Selene vomer, is a game fish of the Carangidae family. The lookdown was first described in 1758 by the "father of taxonomy", Carolus Linnaeus, in the 10th edition of his book Systema Naturae.-Description:...

-like prehistoric jackfish
Carangidae
Carangidae is a family of fish which includes the jacks, pompanos, jack mackerels, and scads.They are marine fish found in the Atlantic, Indian and Pacific Oceans...

 that lived during the Lutetian
Lutetian
The Lutetian is, in the geologic timescale, a stage or age in the Eocene. It spans the time between and . The Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene subepoch...

 epoch, of the Middle Eocene
Eocene
The Eocene Epoch, lasting from about 56 to 34 million years ago , is a major division of the geologic timescale and the second epoch of the Paleogene Period in the Cenozoic Era. The Eocene spans the time from the end of the Palaeocene Epoch to the beginning of the Oligocene Epoch. The start of the...

 of Monte Bolca
Monte Bolca
Monte Bolca is a lagerstätte near Verona, Italy that was one of the first fossil sites with high quality preservation known to Europeans, and is still an important source of fossils from the Eocene....

, Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

.

The dorsal and anal fins of C. pinnatiformis had very high, narrow crests, and it also had very long, thin pelvic fins. Its fins give it a superficial resemblance to a freshwater angelfish
Pterophyllum
Pterophyllum is a small genus of freshwater fish from the family Cichlidae known to most aquarists as "Angelfish". All Pterophyllum species originate from the Amazon River, Orinoco River and Essequibo River basins in tropical South America...

, leading some people to erroneously refer to C. pinnatiformis as an "angelfish," too.

See also

  • Prehistoric fish
    Prehistoric fish
    Prehistoric fish refers to 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 Tertiary. The study of prehistoric fish is called paleoichthyology...

  • List of prehistoric bony fish
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