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Kepplerites trichophorus (Buckman)

19032007190705.jpg 

Size : 60mm
Location : Cirencester, Wiltshire
Age : Lower Callovian Stage ( Kellaways Sands) Jurassic. 
Diagnostics : 

Differential diagnostics : 

Distribution :




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Quenstedtoceras henrici (Sowerby 1819)
19032007191538.jpg 


Size : 80mm
Location : Ashton Keynes
Age : Henrici Subzone, Upper Callovian Stage, Jurassic. 

Diagnostics : Typically have inner whorls with a single secondary rib between each primary rib.

Differential diagnostics : 

Distribution :

References:Martill D.M.& Hudson J.D. Fossils Of The Oxford Clay (1991) The Palaeontological Association. ISBN 0-901702-46-3




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Sigaloceras calloviense (Sowerby 1815)
19032007192103.jpg 


Size : 65mm
Location : Wiltshire
Age : Lower Callovian Stage (Kellaways rock), Jurassic.

Diagnostics : 

Differential diagnostics : 

Distribution :




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Kepplerites galilaei (Oppel 1862, var. Buckman 1922)
19032007192323.jpg 


Size : 110mm
Location : Wiltshire
Age : Lower Callovian Stage (Kellaways rock), Jurassic.


Diagnostics : 

Differential diagnostics : 

Distribution :




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Kepplerites galilaei -Sigaloceras calloviense-Transitional 19032007195035.jpg 

Size : 110mm
Location : Wiltshire
Age : galilaei-calloviense subzone,Lower Callovian Stage (Kellaways rock), Jurassic. 

Diagnostics : 

Differential diagnostics : 

Distribution :




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Proplanulites sp. ()
20032007072712.jpg 


Size : 90mm
Location : Wiltshire 
UK
Age : Lower Callovian Stage ( Kellaways Sands) Jurassic 

Diagnostics : 

Differential diagnostics : 

Distribution :



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Reineckeia anceps (Reinecke 1818)
20032007073218.jpg 


Size : 98mm
Location : Wiltshire 
UK
Age : Jason subzone,Lower Callovian Stage ( Kellaways Sands) Jurassic 

Diagnostics : 

Differential diagnostics : 

Distribution :



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Kosmoceras jason (Reinecke, dƒ¢¢â€š¬¢â€ž¢Orbigny 1847)
20032007073937.jpg 


Size : 75mm
Location : Wiltshire 
UK
Age: Jason sub-zone, Middle Oxford clay, Jurassic 

Diagnostics : Well developed double row of lateral tubercules that are seperated by a spiral smooth band. Large Kosmoceras species the macroconch maturing at around 90-120mm.

Differential diagnostics:

Distribution :
 Abundant.

References: Martill D.M. & Hudson J.D. Fossils Of The Oxford Clay ( 1991) The Palaeontological Association ISBN 0-901702-46-3




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Cadoceras sublaeve (Sowerby 1814)
20032007074623.jpg 


Size : 65mm
Location : Wiltshire 
UK
Age : Lower Callovian ( Kellaways Rock), Jurassic 

Diagnostics : 

Differential diagnostics : 

Distribution :
 Abundant

Additional Images:

1. Replacement white calcite (size 70mm)

20032007185711.jpg  

2.Phosphoric preservation (size 70mm)

20032007185743.jpg 




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