Coralline Oolite Formation
Geological formation in North Yorkshire, England
From Wikipedia, the free encyclopedia
The Coralline Oolite Formation is a limestone formation of Oxfordian (Upper Jurassic) age, found in the Cleveland Basin of North Yorkshire, England.[1]
TypeFormation
Unit ofCorallian Group
Sub-unitsCoral Rag, Yedmandale, Hambleton Oolite, Malton Oolite, Birdsall Calcareous Grit, Middle Calcareous Grit & Hildenley Limestone Members
UnderliesUpper Calcareous Grit, Ampthill Clay & Hunstanton Formations
| Coralline Oolite Formation | |
|---|---|
| Stratigraphic range: Oxfordian ~ | |
| Type | Formation |
| Unit of | Corallian Group |
| Sub-units | Coral Rag, Yedmandale, Hambleton Oolite, Malton Oolite, Birdsall Calcareous Grit, Middle Calcareous Grit & Hildenley Limestone Members |
| Underlies | Upper Calcareous Grit, Ampthill Clay & Hunstanton Formations |
| Overlies | Lower Calcareous Grit Formation & Oxford Clay |
| Thickness | 36–60 m (118–197 ft) |
| Lithology | |
| Primary | Limestone |
| Other | Sandstone |
| Location | |
| Region | North Yorkshire |
| Country | England |
| Extent | Cleveland Basin |
| Type section | |
| Location | Filey Brigg, Filey |
Coral Rag Member
The rock forms some of the hills around Oxford and was once used as building stone. Coral rag can be seen in some of the oldest buildings in that city, including the Saxon tower of St Michael at the Northgate, St George's Tower of Oxford Castle and the mediaeval walls of the city.[2]
Hambleton Oolite Member
Vertebrate paleofauna
Dinosaurs
The following dinosaurs were reported from the formation, with many of them reidentified.[4]
| Taxa | Location | Description | Images |
|---|---|---|---|
|
Berkshire, England[4] | ||
Metriacanthosaurus
|
misidentified | Actually from the Weymouth Member.[5] | |
Sauropoda[4]
|
Oxfordshire, England[4] | "(=Cetiosaurus sp.)"[4] | |
Stegosauridae[4]
|
North Yorkshire, England.[4] | "(=Omosaurus phillipsi)"[4] "Juvenile femur."[6] | |
| Theropoda[4] | North Yorkshire & Oxfordshire, England[4] | "(=Megalosaurus bucklandii)"[4]
| |