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Diaulax (Bell, 1863)

 

A form known from the sandy Grey Chalk-equivalent facies of SW England, and with rare occurrences in the Grey Chalk proper of Southern England.

 

A  B

1).  Diaulax oweni - A unique specimen, preserved intact with articulated appendages.  Found within the head chamber of an ammonite (Grey Chalk, Sandy Cenomanian facies (Zig Zag Chalk equivalent), Chard, Somerset, BMNH (British Museum (Natural History) London) In.61136) ;  (A) Dorsal overview of the specimen (x2.5); (B) Detail of the right cheliped (x4.0)Images  2008 The Natural History Museum, by kind permission.

 

2).  Diaulax oweni - Anterior view of a complete carapace retaining both chelipeds (Grey Chalk, Sandy Cenomanian facies (x2.5, Zig Zag Chalk equivalent), Chard, Somerset, BMNH (British Museum (Natural History) London) In.61136)Image  2008 The Natural History Museum, by kind permission.

 

3).  Diaulax oweni - Ventral (undersurface) view of a complete carapace retaining articulated appendages & abdomen (x2.5, Zig Zag Chalk equivalent), Chard, Somerset, BMNH (British Museum (Natural History) London) In.61136)Image  2008 The Natural History Museum, by kind permission.

 

4).  Diaulax oweni - Posterior view of a complete carapace retaining articulated appendages & abdomen (x2.5, Zig Zag Chalk equivalent), Chard, Somerset, BMNH (British Museum (Natural History) London) In.61136)Image  2008 The Natural History Museum, by kind permission.