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Paracentrophorus madagascariensis Piveteau, 1940 together with scavenging conchostraca (possibly Euestheria truempyi Kozur Seidel, 1982)

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Paracentrophorus madagascariensis Piveteau, 1940 together with scavenging conchostraca (possibly Euestheria truempyi Kozur  Seidel, 1982)

Lower Triassic

Olenekian

Ambilobe

Madagascar

Length 8cm / 3"

 

Small fish (up to 15cm / 6") with a rounded body, somewhat thickset appearance.  Dorsal fin attached to the posterior half of the body. Pectoral and anal fin relatively large. Anal fin starts behind end of dorsal fin in close proximity to caudal fin. Caudal fin moderately divided. Eyes remarkably large.

Paracentrophorus can be easily mixed up with Parasemionotus

 

Lit.:

Piveteau, J. (1940): Paléontologie de Madagascar XXIV Nouvelles recherches sur les poisson du Trias inférieur. Ann. Paleont., 28: 69-88

From the album:

Vertebrates

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Photo Information

  • Taken with OLYMPUS IMAGING CORP. E-M5
  • Focal Length 60 mm
  • Exposure Time 1/30
  • f Aperture f/11.0
  • ISO Speed 1600
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Fossildude19

Fossildude19

Posted

Wonderful example, Thomas!

I've not see the conchostraca in these nodules before. 

Very interesting association. 

Regards,

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oilshale
20 hours ago, Fossildude19 said:

Wonderful example, Thomas!

I've not see the conchostraca in these nodules before. 

Very interesting association. 

Regards,

Thanks Tim,

conchostacans are not so rare in these nodules. You can see them from time to time, but only in nodules where the fish (or ammonite) already started to decay.

Thomas

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