New materials of caturoid fish discovered in China

Feb 04, 2013
New materials of caturoid fish discovered
Gymnoichthys inopinatus Tintori et al., 2010, a new specimen (IVPP V 16354) and its line drawing. Credit: TAN Kai

In a newly published articles, researchers from the Institute of Vertebrate Paleontology and Paleoanthropology describe new materials of caturoid fish—Gymnoichthys inopinatus, from the Middle Triassic Guanling Formation at the Dawazi Village, Luoping County, Yunnan Province, China. Gymnoichthys inopinatus is not only the first caturoid found in China, but also the earliest caturoid in the world, which is 40 million years earlier than the European and North American caturoids. Researchers re-identified its systematic position and reported in the latest issue of Vertebrata PalAsiatica 2013(1).

Previously, caturoids were only discovered in the Jurassic of Europe and North America, and its recognized forms included Liodesmus, the only genera of the family Liodesmidae, and Caturus and Amblysemius of the family Caturidae. Gymnoichthys inopinatus was initially described by Tintori et al. in 2010, and regarded as a basal neopterygian.

G. inopinatus has only one supramaxilla and its symplectic is likely jointed with the articular, which are the identifying characters of Halecomorphi. Morever, G. inopinatus has no scales, its vertebral centra are not ossified, and the structure and relationship of the neural arches and neural , as well as the shape of teeth and ural haemal spines in G. inopinatus are quite like that of the caturoids. Hence, it is suggested to consider G. inopinatus as a basal form of the superfamily Caturoidea.

Explore further: Ancient shark fossil reveals new insights into jaw evolution

More information:

add to favorites email to friend print save as pdf

Related Stories

New Eosauropterygian found in Eastern Yunnan, China

Jun 01, 2011

The marine Triassic deposits in southwestern China have yielded numerous vertebrate fossils (ichthyosaurians, sauropterygians, thalattosaurians, and fishes). A new eosauropterygian, Diandongosaurus acutidentatus ...

New leuciscin fish found in northern China

Jun 02, 2011

SU De-Zao, a retired paleoichthyologist of Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, found a new paleogene leuciscin fish, Tianshanicus liui sp. nov., in the ...

New species of Sinamia discovered

Nov 06, 2012

According to a paper published in the latest issue of Vertebrata PalAsiatica 2012 (4), Dr. ZHANG Jiangyong, Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), Chinese Academy of Sciences, descri ...

Recommended for you

Clippers and coiners in 16th-century England

Apr 14, 2014

In 2017 a new £1 coin will appear in our pockets with a design extremely difficult to forge. In the mid-16th century, Elizabeth I's government came up with a series of measures to deter "divers evil persons" ...

Serbia experts use heavy machinery to move mammoth

Apr 11, 2014

Serbian archaeologists on Friday used heavy machinery to move a female mammoth skeleton—believed to be one million years old—from an open mine pit where it was unearthed nearly five years ago.

User comments : 3

Adjust slider to filter visible comments by rank

Display comments: newest first

1 / 5 (3) Feb 04, 2013
The shape of this skeleton is very reminiscent of a bird.
5 / 5 (1) Feb 05, 2013
The shape of this skeleton is very reminiscent of a bird.

Not at all. That's an elephant.
2.1 / 5 (7) Feb 05, 2013
The shape of this skeleton is very reminiscent of a bird.

Sure. An aquatic bird with fins.

More news stories

How kids' brain structures grow as memory develops

Our ability to store memories improves during childhood, associated with structural changes in the hippocampus and its connections with prefrontal and parietal cortices. New research from UC Davis is exploring ...

Gate for bacterial toxins found

Prof. Dr. Dr. Klaus Aktories and Dr. Panagiotis Papatheodorou from the Institute of Experimental and Clinical Pharmacology and Toxicology of the University of Freiburg have discovered the receptor responsible ...