The Cornbrash Formation is a Middle Jurassic geological formation in England. It ranges in age from Bathonian to Callovian, the uppermost part of the Middle Jurassic.[1] Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[2] The name Cornbrash is an old English agricultural name applied in Wiltshire to a variety of loose rubble or brash which, in that part of the country, forms a good soil for growing corn. The name was adopted by William Smith for a thin band of shelly limestone which, in the south of England, breaks up in the manner indicated. Although only a thin group of rocks (10–25 feet c. 3–7 m), it is remarkably persistent; it may be traced from Weymouth to the Yorkshire coast, but in north Lincolnshire it is very thin, and probably dies out in the neighborhood of the Humber. It appears again, however, as a thin bed in Gristhorpe Bay, Cayton Bay, Wheatcroft, Newton Dale and Langdale. In the inland exposures in Yorkshire it is difficult to follow on account of its thinness, and the fact that it passes up into dark shales in many places the so-called clays of the Cornbrash, with Avicula echinata. The Cornbrash is of little value for building or road-making, although it is used locally; in the south of England it is not oolitic, but in Yorkshire it is a rubbly, marly, frequently ironshot oolitic limestone. In Bedfordshire it has been termed the Bedford limestone.[3]
^"Cornbrash Formation". The BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 27 June 2016.
^Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
^Chisholm 1911.
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building and other commercial or artistic purposes. (across state borders) Cornbrash Sandstone: North Rhine-Westphalia, Lower Saxony Elbe Sandstone: Germany...
(2014). A description of abelisaurid teeth from the Late Jurassic Lourinhã Formation of Portugal and a phylogenetic analysis of theropod relationships based...
The geology of the area is Cornbrash, the name applied to the uppermost member of the Bathonian stage of the Jurassic formation. The name was adopted by...
7 (31): 1–57. Blake, R. J. (1905). "A monograph of the fauna of the Cornbrash. Part I". Monographs of the Palaeontographical Society. 59 (282): 1–100...
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