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Clupavus
''Clupavus'' is an extinct genus of marine ray-finned fish that lived during the middle of the Cretaceous period. It is known from North Africa, Europe, Brazil, and possibly North America. Taxonomy It contains the following species: * ''C. brasiliensis'' - Aptian of Bahia, Brazil (Marizal Formation) * ''C. maroccanus'' - Cenomanian of Morocco (Jbel Tselfat), late Cenomanian/early Turonian of Germany (Hesseltal Formation) Fossils of an indeterminate ''Clupavus'' species are abundant in the Albian-aged Pietraroja Plattenkalk of Italy, and the Cenomanian-aged Komen Limestone of Slovenia. A few specimens of a potential indeterminate species are also known from the Albian-aged Mowry Shale of Wyoming, USA. The genus was initially described in 1950 with the species ''C. neocomiensis'' (Bassani, 1879) as its type species, based on a specimen from Morocco classified ''C.'' cf. ''neocomiensis''. In 1968, the original ''C. neocomiensis'' was found to be synonymous with ''Leptolepis b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesseltal Formation
The Hesseltal Formation or Blackcoloured Formation is a Late Cretaceous (late Cenomanian to early Turonian) geological formation from northern Germany. It consists of lithified marls and limestone, with a unique series of black shales deposited in anoxic event, anoxic conditions during the Cenomanian-Turonian boundary event. It provides an important record of the fauna of the proto-North Sea basin. The formation's diversity of fossil fish is thought to be due to a consequence of an expanding oxygen minimum zone that caused mass mortalities among different communities of fish, including both those associated with warm surface waters and those associated with colder waters from upwelling. The anoxic conditions allowed for detailed preservation of some of these fish, including bony fish with their stomach contents preserved and even a few partial body fossils of cartilaginous fish. Fossil Ammonoidea, ammonites with preserved soft parts are also known. The formation's deposition al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
