| Leintwardine Beds | |
|---|---|
| Stratigraphic range: Silurian | |
| Type | Formation |
| Location | |
| Region | England |
| Country |  United Kingdom |
The Leintwardine Beds is a geologic formation in England. It preserves marine fossils, notably of the brachiopod Lingula , dating back to the Ludlow stage of the late Silurian period. [1]
The Aymestry Limestone is a fossiliferous limestone of Gorstian age deposited in a warm shallow sea near the eastern margin of the Iapetus Ocean. It occurs in England in the Ludlow Group, between the Upper and Lower Ludlow Shales. It derives its name from Aymestrey (sic), Herefordshire, where it may be seen on both sides of the River Lugg. It is well developed in the neighbourhood of Ludlow and occupies a similar position in the Ludlow shales at Woolhope, the Abberley Hills, May Hill and the Malvern Hills.
The Ludlow Group are geologic formations deposited during the Ludlow epoch of the Silurian period in the British Isles, in areas of England, Ireland, Scotland, and Wales.
Batrachiderpeton is an extinct genus of nectridean lepospondyl within the family Diplocaulidae; it was a basal member of the family. The type species is B. reticulatum and was found in a coal field in Northumberland, England at a locality that also yields the remains of Anthracosaurus russelli. A second species is also known: B. lineatum.
Aldanotreta is an extinct genus of brachiopods dating from the Tommotian age of the Cambrian period. It is perhaps the earliest brachiopod. A living relative is Lingula found in Japan.
Metacalymene is a genus of trilobites in the order Phacopida, family Calymenidae. This genus is considered monotypic, containing only the type species:
Planiscutellum is a genus of trilobites in the order Corynexochida family Styginidae. These trilobites were nektobenthic detritivore. They lived in the Silurian period in the upper Ludlow epoch, from 422.9 ± 1.5 to 418.7 ± 2.8 million years ago.
Inversoceras is a genus of cephalopods in the order Oncocerida and the family Trimeroceratidae. These mollusks were fast-moving nektobenthic carnivores. They lived in the Silurian period, from the Lower Wenlock age to the Ludlow age.
The Maxville Limestone is a geologic formation in Ohio. It preserves fossils dating back to the Carboniferous period.
The Kokomo Formation is a geologic formation in Indiana. It preserves fossils dating back to the Silurian period, most notably sea scorpions.
The Ludlow Formation is a geologic formation in western North Dakota. It preserves fossils dating back to the Paleogene Period.
The Clifton Down Limestone is a geologic formation in England. It preserves fossils dating back to the Carboniferous period.
The Spilsby Sandstone is a geologic formation in England. It preserves fossils dating back to the Cretaceous period.
The Durlston Formation is a geologic formation in England. Particularly in the Isle of Purbeck. It preserves fossils dating back to the Berriasian stage of the Lower Cretaceous.
The Fullers Earth Formation is a geological formation that outcrops in southern England. It is also mostly present in the subsurface of the Wessex Basin and offshore in the English Channel Basin, Celtic Sea Basin and St George's Channel Basin. It preserves fossils dating back to the Bathonian stage of the Middle Jurassic series such as the pterosaur Dolicorhamphus. It is the lateral equivalent of the Rutland Formation, Sharp's Hill Formation, Calcaire d’Ecouché, and Calcaire de Caen
The Headon Hill Formation is a geological formation found in the Isle of Wight and south Hampshire, England. It preserves fossils dating back to the Priabonian stage.
The Woolwich Formation is a geological formation in southeast England. It preserves fossils dating back to the Paleogene period.
The Ancholme Group is a geologic group in England. It preserves fossils dating back to the Jurassic period. It has previously been referred to as the Ancholme Clay Group. The group consists of predominantly grey, marine mudstone and silty mudstone with beds of argillaceous limestone nodules. In parts of its range it interfingers with the Corallian Group, which predominantly consists of coralliferous limestones.
The Selborne Group is a geologic group in England. It preserves fossils dating back to the Cretaceous period. It comprises the Gault Formation and the overlying Upper Greensand Formation.
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