Moskvoretskaya Formation
# Moskvoretskaya Formation

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.

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

## Fossil content

### Amphibians

Amphibians :

| Genus | Species | Location | Stratigraphic position | Material | Notes |
| - | - | - | - | - | - |
| Urodela | Gen. et sp. indet. | Peski locality. | | A fragmentary trunk vertebra. | A crown salamander. |

### Reptiles

**Turtles**

Turtles :

| Genus | Species | Location | Stratigraphic position | Material | Notes |
| - | - | - | - | - | - |
| Heckerochelys | H. romani | Moscow | Kolomna | | A stem turtle belonging to Mesochelydia. |

**Crocodyliforms**

Neosuchians :

| Genus | Species | Location | Stratigraphic position | Material | Notes |
| - | - | - | - | - | - |
| Neosuchia | Gen. et sp. indet. | Moscow | Kolomna | Vertebrae, teeth, dentary fragment | |

**Lepidosauromorpha**

Lepidosauromorpha :

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

**Dinosaurs**

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 |

### Therapsids

Therapsids :

| Genus | Species | Location | Stratigraphic position | Material | Notes |
| - | - | - | - | - | - |
| Morganucodontidae? | Gen. et sp. indet. | | | Femur | |

### Fish

* Ceratodus segnis
* Ischyodus cf. egertoni
* Hybodus sp.
* Lepidotes sp.
* Ptycholepis sp.
* Dapediidae indet.

### Flora

* Cedrus sp.
* Picea sp.
* Pinus sp.
* Bennettitales indet.
* Cyatheaceae indet.
* Cycadales indet.
* Gingkoales indet.
* Gleicheniaceae indet.
* Peltaspermales indet.

### Other

* Scyadopitys verticillata
* cf. Gobiops sp.
* Caudata indet.
