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Moskvoretskaya Formation

Coordinates: 55°12′N 38°48′E / 55.2°N 38.8°E / 55.2; 38.8
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Moskvoretskaya Formation
Stratigraphic range: Bathonian
~168–167 Ma
TypeGeological formation
Sub-unitsMeshchera Member
UnderliesCallovian and Oxfordian marine claystones
OverliesUnconformably (about 150 Ma) overlying and infilling
Middle Carboniferous limestone
AreaKolomensky District, Moscow Oblast
ThicknessVariable
Lithology
PrimaryClaystone, siltstone
OtherSandstone
Location
Coordinates55°12′N 38°48′E / 55.2°N 38.8°E / 55.2; 38.8
Approximate paleocoordinates48°48′N 41°12′E / 48.8°N 41.2°E / 48.8; 41.2
RegionMoscow
Country Russia
ExtentLocalized in karstified limestones
Type section
Named forMoskva River
Moskvoretskaya Formation is located in Russia
Moskvoretskaya Formation
Moskvoretskaya Formation (Russia)
Moskvoretskaya Formation is located in Moscow Oblast
Moskvoretskaya Formation
Moskvoretskaya Formation (Moscow Oblast)

The Moskvoretskaya Formation is a Middle Jurassic (Bathonian stage) geologic formation in the European part of Russia. It consists of continental claystones, siltstones and sandstones deposited in karstified segments of underlying Middle Carboniferous limestone, that would have formed underground aquifers.

The formation is divided up into two members, the lower consists of dark clays to silts and is highly fossiliferous, while the upper member is sandy and lean in fossil content.[1]

The remains of indeterminate tetanuran dinosaurs are known from the formation. As are fossil flora, fish and abundant remains of the turtle Heckerochelys romani,[2] and various other fossils.[3]

Fossil content

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Amphibians

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Amphibians
Genus Species Location Stratigraphic position Material Notes
Urodela Gen. et sp. indet. Peski locality.[4] A fragmentary trunk vertebra.[4] A crown salamander.

Reptiles

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Turtles

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Turtles
Genus Species Location Stratigraphic position Material Notes
Heckerochelys H. romani Moscow Kolomna A stem turtle belonging to Mesochelydia.[2]

Crocodyliforms

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Neosuchians
Genus Species Location Stratigraphic position Material Notes
Neosuchia Gen. et sp. indet. Moscow Kolomna Vertebrae, teeth, dentary fragment [1]

Lepidosauromorpha

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Lepidosauromorpha
Genus Species Location Stratigraphic position Material Notes
Lepidosauromorpha Indeterminate Peski Left maxilla Previously referred to the choristodere Cteniogenys. Similar to Marmoretta and Fraxinisaura.[5]

Dinosaurs

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Dinosaurs
Genus Species Location Stratigraphic position Material Notes
Tetanurae Gen. et sp. indet. Includes a partial skull, tooths and postcranial elements Formerly referred to Richardoestesia and Coelurosauria[1][6]

Therapsids

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Therapsids
Genus Species Location Stratigraphic position Material Notes
Morganucodontidae? Gen. et sp. indet. Femur [7]

Fish

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Flora

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Other

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See also

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References

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  1. ^ a b c d e Pashschenko et al., 2018
  2. ^ a b Sukhanov, 2006
  3. ^ Moskvoretskaya Formation at Fossilworks.org
  4. ^ a b Skutschas, Pavel P.; Kolchanov, Veniamin V.; Sennikov, Andrey G.; Syromyatnikova, Elena V. (2022-10-19). "Discovery of a crown salamander in the Middle Jurassic (Bathonian) Moskvoretskaya formation of the Moscow Region, Russia". Historical Biology. 35 (11): 2123–2126. doi:10.1080/08912963.2022.2133605. ISSN 0891-2963. S2CID 253036062.
  5. ^ Skutschas, Pavel P.; Sennikov, Andrey G.; Syromyatnikova, Elena V.; Vitenko, Dmitriy D.; Parakhin, Igor A.; Bapinaev, Roman A.; Evans, Susan E. (2021-06-09). "A lepidosauromorph specimen from the Middle Jurassic (Bathonian) Moskvoretskaya Formation of the Moscow Region, Russia". Historical Biology. 34 (3): 566–570. doi:10.1080/08912963.2021.1935921. ISSN 0891-2963. S2CID 236282947.
  6. ^ Alifanov & Sennikov, 2001
  7. ^ Lopatin & Averianov, 2006

Bibliography

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Further reading

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