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Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Smith A.S., Zaton M. (2007) The first Actinopterigian (from the Bathonian of the Polish Jura)
Smith A.S., Zaton M. (2007) The first Actinopterigian
mhornДата: Saturday, 15.11.2008, 13:59 | Сообщение # 1
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Smith A.S., Zaton M. (2007) The first Actinopterigian (Pisces: Osteichthyes) tooth from the Bathonian (Middle Jurassic) of the Polish Jura (south-central Poland) // Freiberger Forschungshefte, C (Palaeontologie, Stratigraphie, Fazies). Bd.15. S.35–40.

pdf: http://www.plesiosauria.com/pdf/smith_and_zaton_2007.pdf

A 12 mm long conical tooth crown is described from the Middle Bathonian (subcontractus Zone) deposits of the “Gnaszyn” clay-pit at Gnaszyn Dolny, Poland. The fossil represents the first reported actinopterigian (basal Neopterygii) material from the Middle Jurassic of Poland. The specimen bears a distinctive ornamentation of anatomising ridges and an acrodin cap at the apex indicating a large actinopterygian fish. The tooth morphology and size is typical of a large macrophagous predator.


Middle Jurassic - Lower Cretaceous ammonites & aptychi
 
Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Smith A.S., Zaton M. (2007) The first Actinopterigian (from the Bathonian of the Polish Jura)
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