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The Wren's Nest Guide Wren's Nest

Wren's Nest National Reserve is a Geological Site of Exceptional Importance, and is one of the most notable geological locations in the British Isles.

It is internationally famous for its large numbers of beautifully preserved , collections of which can be found in museums throughout the world.

Over 700 fossil species are known at Wren’s Nest and was the first place in the world where a third of these were found.

In recognition of its geological significance, Wren’s Nest was declared a National Nature Reserve in 1956 and also a Site of Special Scientific Interest in 1990. Brachiopods

Atrypa reticularis Resserella canalis Sphaerirhynchia wilsoni

Eoplectdonta duvalii Amphistrophia funiculata Leptaena depressa

Strphonella euglypha Eospirifer radiatus Howellella elegans

Gypidula galaeta Meristina obtusa Trigonorhnchia stricklandii Bivalves

Pteronitella retroflexa Grammysia cingulata Gastropods

Acroculia haliotis Poleumita discors Poleumita funatis Worms and Squid

Conularia quadrisulcata Cornulites serpularius Tentaculites ornatus

Cawsonoceras annulatum

Trilobites are a group of extinct fossil easily recognized by their distinctive three-lobed, three-segmented form. These were exclusively marine which first appeared at the beginning of the Period, about 542 million ago, when they dominated the seas. Here are just two examples of species that are commonly found fossilised at Wren's Nest.

Calymene Blumenbachii

Calymene blumenbachii is a species of trilobite discovered in the limestone quarries of Wren's Nest Hill in Dudley, England. Nicknamed the Dudley Bug or Dudley Locust by 18th century quarrymen it became a symbol of the town. Calymene blumenbachii is commonly found in Silurian rocks (about 430 million years ago) and is thought to have lived in shallow waters.

Dudleyaspis quinquespinosa

The Dudleyaspis quinquespinosa is a type of trilobite which was kept as a part of the infamous 'Charles Holcrost' collection of fossils. This fossil is specifically names after the area in which it was discovered: Dudley. Builders

Acervularia ananas Favosites gothlandicus Halysites catenularius

Dokophyllum turbinatum Tryplasma loveni Cyathophylum pseudoceratites

Crinoid Stem Ossicle (stem segment) The STEM Response Team

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