Jump to content

Triassic fish fossil


Antonio Musolino

Recommended Posts

i found this fish 4 years ago but i could not identify it yet, who can help me?
Thanks for your help!

 

 

DSC01568.JPG

DSC01569.JPG

DSC01571.JPG

  • I found this Informative 2
Link to comment
Share on other sites

Moved to FOSSIL ID;) 

 

Antonio, 

What is the size of this fish?

 

@oilshale

Pteronisculus  looks like a match, but for species I am unsure:

 

Pteronisculus cicatrosus White, 1934

Small to medium fish with fusiform body (less than 15cm / 6" ?). Small dorsal fin, located slightly behind the midpoint of the body, diagonally opposite the anal fin. Big eyes. Relatively long and broad pectoral fins. Comparatively small scales.

5ae499a0d5c7b_PteronisculusRekonstr.JPG.63def530a4dcb2fe519d34241277c76f.JPG

 

Pteronisculus macropterus White, 1933

In his 1933 paper, White described two new Pteroniscoids from Madagascar: Pteronisculus cicatrosus , which is rather common and the somewhat rarer Pteronisculus macropterus. According to White, P. macropterus is characterized by an "elongate-fusiform body; maximum depth rather less than length of head with opercular apparatus, and equal to one-quarter total length to base of caudal fin. length of pectoral fin exceeding distance between tip of snout and hinder margin of maxilla. Origin of dorsal fin above fortieth scale-row from pectoral girdle approximately. Scales in more than seventy vertical rows to base of caudal fin, and ornamented with oblique rugae only."

 

Information from THIS TOPIC:

 

  • I found this Informative 6

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

Hi Antonio,

The maxilla is unfortunately not completely visible but the fish surely belongs to the family Palaeoniscidae in the genus Pteronisculus. 
Unfortunately the different species (P. cicatrosus, P. macropterus, P. broughi, P. arambourgi) of the genus Pteronisculus are not easy to distinguish. P. macropterus has very long pectoral fins (about as long as the head) as one distinguishing feature, but the other species are essentially distinguished by the head bones, which unfortunately cannot be seen here.

Pteronisculus.JPG.07297289843eb3ce8ec4acee23c823c0.JPG

Thomas

Edited by oilshale
  • I found this Informative 6

Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC).

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...