''Ichthyokentema'' ("fish-goad") is an extinct genus of stem-
teleost
Teleostei (; Ancient Greek, Greek ''teleios'' "complete" + ''osteon'' "bone"), members of which are known as teleosts (), is, by far, the largest group of ray-finned fishes (class Actinopterygii), with 96% of all neontology, extant species of f ...
fish that lived during the
Late Jurassic
The Late Jurassic is the third Epoch (geology), epoch of the Jurassic Period, and it spans the geologic time scale, geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic stratum, strata.Owen ...
. It contains one species, ''I. purbeckensis'', which is known from the
Purbeck Group
The Purbeck Group is an Upper Jurassic to Lower Cretaceous lithostratigraphy, lithostratigraphic group (stratigraphy), group (a sequence of rock strata) in south-east England. The name is derived from the district known as the Isle of Purbeck in ...
of
Dorset
Dorset ( ; Archaism, archaically: Dorsetshire , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by Somerset to the north-west, Wiltshire to the north and the north-east, Hampshire to the east, t ...
, England.
''I. purbeckensis'' was originally described as a species of ''
Pholidophorus
''Pholidophorus'' (from , 'horny scale' and , 'to bear') is an extinct genus of Stem group, stem-teleost fish. Numerous species were assigned to this genus in the past, but only the type species ''Pholidophorus latiusculus'', from the Late Tria ...
'' by
William Davies in 1887,
but was moved to its own genus by
Arthur Smith Woodward
Sir Arthur Smith Woodward, FRS (23 May 1864 – 2 September 1944) was an English palaeontologist, known as a world expert in fossil fish. He also described the Piltdown Man fossils, which were later determined to be fraudulent. He is not rel ...
in 1941.
See also
*
List of prehistoric bony fish genera
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
Prehistoric ray-finned fish genera
Tithonian life
Late Jurassic bony fish
Late Jurassic fish of Europe
Jurassic England
Fossils of England
Fossil taxa described in 1941
Taxa named by Arthur Smith Woodward
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