Ammonite from Whitby - North Yorkshire - Dactylioceras Commune - 100×98×55 mm

Description
Ammonite from Whitby - North Yorkshire - Dactylioceras Commune - 100×98×55 mm
Lower Jurassic - Kettleness - England

Dactylioceratidae (Hyatt, 1867) is a family of ammonites represented by the Dactylioceras genre.
Their morphology is defined by the following features (Venturi e al. 2010 and Howarth, 2013): with evolute, serpenticone to cadicone shells, without keel; section of the coils mainly round but also subquadratic or wide subtrapezoidal.
The sutures have arborescent lobes and saddles with accessory lobes, these are longidome shells, i.e. with a body-chamber long more than a whorl and with thickened mouth border similar to that of Lytoceras.

Lot details
Object
Ammonite from Whitby - North Yorkshire
Scientific name
Dactylioceras Commune
Origin
Kettleness - England
Geological Period
Lower Jurassic
Condition
Good condition
Treatment
Conserved
Dimensions
100×98×55 mm
Weight
598 g
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