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Topic: Gryphaea

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	Gryphaea arcuata
		To both the layman and the professional geologist the fossil oyster Gryphaea arcuata is one of the most easily recognizable species in Britain.
		Even at the time when these shells had received distinctive names in some parts of the country, for Plot further records that his specimen 'may be the same with the petrified Concha Oblonga crassa, mentioned by Dr. Merret, found in Worcester-shire, and there called Crow-stones, Crow-cups, or Egg-stones'.
		According to some 17th and 18th Century reports in Scotland, the possession of a specimen guaranteed a cure for arthritis or other pains in the bones.
	www.whiterosesgarden.com /Grimoire/GRIM_fossils/folklore_of_gryphaea_arcuata.htm (278 words)

	Fossil folklore
		The oyster Gryphaea is one of the commonest fossils found in the British Jurassic.
		It is unclear whether Gryphaea shells were once believed to be the actual toenails of devils, or just that they corresponded with the popular conception of what a devil's toenail ought to look like.
		In Scotland, fossil Gryphaea shells are known as clach crubain, translated as 'crouching shell' (Oakley 1974).
	www.nhm.ac.uk /nature-online/earth/fossils/fossil-folklore/fossil_types/bivalves.htm (250 words)

	Austernarten
		Der berühmte französische Naturwissenschaftler Lamark hatte beispielsweise die Portugiesische Auster als "Gryphaea angulata" bezeichnet.
		Der bekannte Naturwissenschaftler C.M. Yonge erklärt einleuchtend in seinem bedeutenden Buch "Oysters", dass die Gattungsbezeichnung "Gryphaea" eindeutig nicht zur Portugiesischen Auster passt.
		"Gryphaea" bezeichnet ausgestorbene Urformen der Gattung Crassostrea, welche passender unter den Fossilien einzuordnen wären (siehe
	www.austern.com /arten.html (1348 words)

	Bedford Museum
		The shells of Gryphaea are common fossils in Jurassic rocks.
		Gryphaea are related to modern bivalves, such as oysters and cockles.
		If a Gryphaea shell grows attached to an ammonite it gains the pattern of the ammonite shell on its own.
	www.bedfordmuseum.org /collections/fossils/gryphaea.htm (140 words)

	Amazon.com: gryphaea (Site not responding. Last check: 2007-10-16)
		Morphology, Palaeoecology and Evolution of the Genus Gryphaea in the British Lias.
		The Lower Cretaceous Gryphaeas of the Texas Region by Robert Thomas, and Vaughan, Thomas Wayland Hill (Paperback - 1898)
		a case of neoteny in Gryphaea (Jones and Gould, 1999), and...
	www.amazon.com /s?ie=UTF8&keywords=gryphaea&index=blended&page=1 (354 words)

	[No title]
		The image below shows four specimens found within a hundred yards of each other on Monmouth Beach just to the west of Lyme.
		They are all obviously Gryphaea species but seem to vary between the shape of G. arcuata and G. dilobotes.
		They may, of course, just be variations within a single species.
	www.ammonite.free-online.co.uk /gryph.htm (143 words)

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