Siyuichthyidae is an extinct family of
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 ...
-
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 known from the
Early Cretaceous
The Early Cretaceous (geochronology, geochronological name) or the Lower Cretaceous (chronostratigraphy, chronostratigraphic name) is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 143.1 ...
Tugulu Group
The Tugulu Group () is a geological Group in Xinjiang, China whose strata date back to the Early Cretaceous
The Early Cretaceous (geochronology, geochronological name) or the Lower Cretaceous (chronostratigraphy, chronostratigraphic name) is the ...
of
Xinjiang
Xinjiang,; , SASM/GNC romanization, SASM/GNC: Chinese postal romanization, previously romanized as Sinkiang, officially the Xinjiang Uygur Autonomous Region (XUAR), is an Autonomous regions of China, autonomous region of the China, People' ...
, China. It contains five genera with a total of nine species, all of which are based on poor remains.
Classification
* ''
Bogdaichthys''
** ''B. fukangensis''
** ''B. serratus''
* ''
Dsungarichthys''
** ''D. bilineatus''
* ''
Manasichthys''
** ''M. elongatus''
** ''M. tuguluensis''
* ''
Siyuichthys''
** ''S. ornatus''
** ''S. pulchellus''
** ''S. pulcher''
* ''
Wukangia''
** ''W. houyanshanensis''
References
Prehistoric teleostei
†
A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an asterisk has already been used. The symbol is also used to indicate death (of people) or extinction (of species or languages). It is one of the mo ...
Early Cretaceous first appearances
Early Cretaceous extinctions
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