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Description: | Specimen of a fossil brachiopod (lamp shell), a Delabole Butterfly, Cyrtospirifer extensus, collected from the Delabole SLate of Late Devonian, Famennian age from Delabole Quarry (?), Launceston, Cornwall (SW England).
Cyrtospirifer extensus was a brachiopod with a wide shell. This fossil, which is probably from the Delabole Slate of Cornwall, has been flattened and distorted as the shale that contained it was changed to slate by earth movements. These changes often resulted in fossils like this one becoming elongated. Quarrymen thought that these winged fossils looked a bit like butterflies, and because many of the fossils came from the delabole Quarry, brachiopods like this one became known as the Delabole Butterfly.
The specimen was found in Cornwall.
It is from the Devonian period (418 - 362 million years ago) | Publisher: | Tyne & Wear Archives & Museums | Subjects: | Classification: Animalia Brachiopoda Invertebrata Articulata | Temporal: | Devonian period (418 - 362 million years ago) | Source: | Tyne & Wear Archives & Museums | Identifier: | http://www.twmuseums.org.uk/geofinder/se... | Go to resource |
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