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A slab of rock recovered during the re-building of a stone wall in the English Lake District was found to contain exceptional fossils of a marine orthocone nautiloid Cephalopod. This was an ancient predatory marine animal with a long cone or shell (orthocone) the animal living in the largest end. The inside of several of the fossils is exposed showing the buoyancy system and other features. The brachiopod Orthis is also present, as is the post-mortem occupancy of one of the fossils by orbiculoid brachiopods.
The rock type is probably a siliciclastic sandstone formed probably from re-worked volcanic ash. Large fossils in this kind of material are extremely rare. Research is still continuing into the fossils and comments and thoughts are welcome.

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Keywords:brachiopods, brachiopods, cephalopods, cumbria, fossils, geology, lake district, national trust, nautiloids, orbiculoid, ordovician, orthis, orthocone, palaeontology, sandstone, shells, silurian

Orthocone nautiloids, Reference Image

Orthocone nautiloids, Reference Image

Orthocone nautiloid

Orthocone nautiloid

Orthocone nautliloid - close up

Orthocone  nautliloid - close up

Orthocone nautiloid

Orthocone nautiloid

Jumble of orthocone nautiloid remains

Jumble of orthocone nautiloid remains

Orthocone nautiloid - patterning

Orthocone nautiloid - patterning

Orthocone Nautiloid - patterning

Orthocone Nautiloid  - patterning

Orthocone nautiloid interior

Orthocone nautiloid interior

Orthocone nautiloid jumble

Orthocone nautiloid jumble

Orthocone nautiloid body end

Orthocone nautiloid body end

Orthocone nautiloid (LED)

Orthocone nautiloid (LED)

Orthocone nautiloid - septum and siphuncle

Orthocone nautiloid - septum and siphuncle

Brachiopoda, Orthis

Brachiopoda, Orthis

Brachiopoda, Orbiculoidea

Brachiopoda, Orbiculoidea

Brachiopoda, Orthis

Brachiopoda, Orthis

Matrix of rock slab ONE

Matrix of rock slab ONE

Close up rock matrix two

Close up rock matrix two