Earth:Melovatka Formation

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Short description: Geologic formation in Russia
Melovatka Formation
Stratigraphic range: Middle Cenomanian
~99–95 Ma
TypeGeological formation
Lithology
PrimaryPhosphorite
OtherSandstone
Location
Coordinates [ ⚑ ] : 50°54′N 44°42′E / 50.9°N 44.7°E / 50.9; 44.7
Paleocoordinates [ ⚑ ] 43°06′N 38°48′E / 43.1°N 38.8°E / 43.1; 38.8
RegionVolgograd Oblast
Country Russia
Type section
Named forMelovatka
Melovatka Formation is located in Russia
Melovatka Formation
Melovatka Formation (Russia)
Melovatka Formation is located in Volgograd Oblast
Melovatka Formation
Melovatka Formation (Volgograd Oblast)

The Melovatka or Melovatsskaya Formation is a Cenomanian geologic formation in Russia . Pterosaur fossils have been recovered from the formation.

Description

The two phosphorite horizons are separated in places by a yellowish sand interbed up to 1 m thick; however, they sometimes merge into a single horizon. The lower interbed or part of the integrated phosphorite horizon shows in places straight diagonal bedding, which is manifested in the orientation of almost flat pellets, pebbles, and pseudomorphs on bivalve shells. The phosphate concretions are irregular aggregates and rounded pebbles, ranging in size from several millimeters to 5–10 cm. They are dark brown or nearly black.[1]

Fossil content

The following vertebrate fossils were reported from the formation:[1]


See also

  • List of pterosaur-bearing stratigraphic units
  • List of fossiliferous stratigraphic units in Russia

References