The Yorkshire Jurassic
16th November 2008

The Yorkshire Jurassic contains both beautiful marine fossils and terrestrial deposits with finely preserved plants and dinosaur footprints. A small selection is shown here, from the coast between Whitby and Scarborough.

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Arnioceras semicostatum, 35 mm, Lower Lias, Robin Hoods Bay, North Yorkshire. Mike Marshall preparation.
Arnioceras semicostatum, 35 mm, Lower Lias, Robin Hoods Bay, North Yorkshire. Mike Marshall preparation.
 Androgynoceras maculatum, 55 mm. with bivalves and brachiopod. Lower Lias, Robin Hoods Bay. Mike Marshall preparation.
Androgynoceras maculatum, 55 mm. with bivalves and brachiopod. Lower Lias, Robin Hoods Bay. Mike Marshall preparation.
 Phylloceras heterophyllum, a spectacular 22 cm ammonite, Upper Lias, Lower Jurassic. Portmulgrave, North Yorkshire. Mike Marshall preparation.
Phylloceras heterophyllum, a spectacular 22 cm ammonite, Upper Lias, Lower Jurassic. Portmulgrave, North Yorkshire. Mike Marshall preparation.
 Harpoceras falciferum, 115 mm. Upper Lias, Bituminous Shale, Sandsend, Whitby. Mike Marshall preparation.
Harpoceras falciferum, 115 mm. Upper Lias, Bituminous Shale, Sandsend, Whitby. Mike Marshall preparation.
Grammoceras thouarsense, specimen with 14 ammonites ranging from 60 to 15 mm, Upper Lias, Ravenscar, North Yorkshire. Mike Marshall preparation.
Grammoceras thouarsense, specimen with 14 ammonites ranging from 60 to 15 mm, Upper Lias, Ravenscar, North Yorkshire. Mike Marshall preparation.
 Dactylioceras commune, 75 mm diameter, complete with peristome. Commune Zone, near Whitby, North Yorkshire, UK.
Dactylioceras commune, 75 mm diameter, complete with peristome. Commune Zone, near Whitby, North Yorkshire, UK.
 Hildoceras sublevisoni, 115 mm. Kettleness, North Yorkshire.
Hildoceras sublevisoni, 115 mm. Kettleness, North Yorkshire.
 Lytoceras cornucopia, 60 mm, Upper Lias, Lower Jurassic. Ravenscar, North Yorkshire.
Lytoceras cornucopia, 60 mm, Upper Lias, Lower Jurassic. Ravenscar, North Yorkshire.
Caloceras johnstoni, 50 mm, Holderness Coast, North Yorkshire. Mike Marshall preparation.
Caloceras johnstoni, 50 mm, Holderness Coast, North Yorkshire. Mike Marshall preparation.
 Cuspiteuthis tabularis, 25.5 cm excellent belemnite, Upper Lias, Whitby, North Yorkshire.
Cuspiteuthis tabularis, 25.5 cm excellent belemnite, Upper Lias, Whitby, North Yorkshire.
 Acrocoelites sp., belemnite, 100 mm, Upper Lias, Whitby, North Yorkshire.
Acrocoelites sp., belemnite, 100 mm, Upper Lias, Whitby, North Yorkshire.
 Very rare 17 cm teuthid cephalopod in pyritic concretion. Upper Lias, falcifer zone, exaratum subzone, Jet Rock. Hawsker, N Yorkshire. Doyle 1990.
Very rare 17 cm teuthid cephalopod in pyritic concretion. Upper Lias, falcifer zone, exaratum subzone, Jet Rock. Hawsker, N Yorkshire. Doyle 1990.
Hyspidocrinus scalaris, 90 mm x 70 mm. Lower Lias, Robin Hoods Bay near Whitby, North Yorkshire. Mike Marshall preparation.
Hyspidocrinus scalaris, 90 mm x 70 mm. Lower Lias, Robin Hoods Bay near Whitby, North Yorkshire. Mike Marshall preparation.
 Drawing of a crinoid, Pentacrinites dichotomus, detail of 145 x 70 mm specimen (now in Andy Tenny collection), Upper Lias, Whitby, North Yorkshire. The stem, covered by numerous grasping cirri is visible at the base and terminates in the calyx. The arms show four orders of branching and fine pinnules at the top of the image.
Drawing of a crinoid, Pentacrinites dichotomus, detail of 145 x 70 mm specimen (now in Andy Tenny collection), Upper Lias, Whitby, North Yorkshire. The stem, covered by numerous grasping cirri is visible at the base and terminates in the calyx. The arms show four orders of branching and fine pinnules at the top of the image.
 Whitby jet with encrusting serpulid worms. 80 mm long.
Whitby jet with encrusting serpulid worms. 80 mm long.
 Crocodile skull, Steneosaurus bollensis, 135 mm juvenile. Whitby. North Yorkshire. View from above.
Crocodile skull, Steneosaurus bollensis, 135 mm juvenile. Whitby. North Yorkshire. View from above.
Crocodile Steneosaurus vertebrae, each is 5 cm long. Upper lias, Bituminous shales, 180 Million Years Old, Sandsend Nr Whitby, N Yorks England.
Crocodile Steneosaurus vertebrae, each is 5 cm long. Upper lias, Bituminous shales, 180 Million Years Old, Sandsend Nr Whitby, N Yorks England.
 Ginkgo huttonii (Sternberg) Heer. Scalby Ness Plant Bed, Long Nab Member, Scalby Formation, Bathonian, Scalby Ness, near Scarborough, Yorkshire. Representative of the deciduous maidenhair tree. See van Konijnenburg-van Cittert & Morgans (1999).
Ginkgo huttonii (Sternberg) Heer. Scalby Ness Plant Bed, Long Nab Member, Scalby Formation, Bathonian, Scalby Ness, near Scarborough, Yorkshire. Representative of the deciduous maidenhair tree. See van Konijnenburg-van Cittert & Morgans (1999).
 Spectacular sauropod print cf Brontopodus ichnosp., cast in sandstone, 37 cm, Scalby Formation, Middle Jurassic, Burniston Bay, North Yorkshire.
Spectacular sauropod print cf Brontopodus ichnosp., cast in sandstone, 37 cm, Scalby Formation, Middle Jurassic, Burniston Bay, North Yorkshire.
 Unio sp, 8 cm complete freshwater bivalve, Saltwick Formation, Aalenian, Middle Jurassic, Whitby, North Yorkshire.
Unio sp, 8 cm complete freshwater bivalve, Saltwick Formation, Aalenian, Middle Jurassic, Whitby, North Yorkshire.
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