Edited by TqB
- 2
Report Fossil
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By TqB (edited)
Belemnite
Kingdom: Animalia
Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Early
International Age: Toarcian
Whitby Mudstone Formation
Cement Shales
Collector: self
Date Collected: 04/09/2015
Acquired by: Field Collection
Length: 21 cm
Whitby coast
North Yorkshire
England
The phragmocone is partly in a nodule, the rostrum protruding from it - quite rare in these beds.
It has the remains of an epirostrum.
Assigned to Megateuthis in:
Doyle, P. 1990-92 The British Toacian (Lower Jurassic) Belemnites. Monograph of the Palaeontographical Society, London: Part 2, 50-79, pls.18-28 (Publ. No. 587, vol. 145
Contentious taxonomy down the years - diagnostic features include the pair of dorsolateral apical grooves.
Similar specimens of Acrocoelites sp. are supposed to have an additional ventral groove but this is variable ...
Edited by TqB
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