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CEPHALOPODA
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(other than the Ammonoidea)
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In contrast to the Ammonoidea, Nautiloid cephalopods
are relatively infrequent and belong to a few long-ranging genera of world-wide
distribution. Calcified beaks of Nautiloids, known as Rhynchoteuthis,
have also been found. An example of each is figured below.
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NAUTILACEA; NAUTILIDAE
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Eutrephoceras clementinum (d'Orbigny)
- from Folkestone, Kent
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NAUTILICEAE; NAUTILIDAE
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Rhynchoteuthis (a calcified Nautilus beak) - from
Folkestone, KENT
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BELEMNITIDAE; NEOHIBOLITES
Stolley
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Guards of the belemnite Neohibolites are
ubiquitous in the Gault of Kent and because of their resistant nature
make up a large part of the weathered out fossil debris. Typical examples
from the Albian of Kent are figured below:
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Neohibolites ernsti Spaeth
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Neohibolites minimus Miller
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Late Albian Hysteroceras varicosum Subzone -
near Maidstone, KENT
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Lower Bed VII - Middle Albian lautus/nitidus
Subzoneof Folkestone, KENT
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with thanks to Dr. Simon Mitchell (University
of the West Indies) for the identification of N. ernsti
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Two rare specimens of Neohibolites minimus
var. obtusus Stolley
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Bed I (ii) - glauconitic loam
immediately above the "sulphur band"
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uppermost Early Albian: Pseudosonneratia (Isohoplites)
steinmanni subzone of Owen, or
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lowermost Middle Albian Hoplites (Isohoplites)
eodentatus Subzone of Casey
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Neohibolites minimus var.
attenuatus Sowerby
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Folkestone - Late Albian - Bed IX (Hysteroceras
orbignyi Subzone ) 20cm above upper cristatum nodules
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? Belemnite hoolkets, or perhaps more likely the
chitinous jaw structures of an Annelid polychaete worm known as Scolecodont
(Advice please)
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Middle Albian - Lower Gault - U. Bed VII (Eu. lautus
Zone; A. daviesi Sz) Ex Bulk -Sample F74
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).jpg) |
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Middle Albian - Lower Gault - Bed II (iv) upper 20cm
(Eu. loricatus Zone; A. intermedius Sz) Ex Bulk -Sample
F52/91
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| References: | a. Geol. Survey Memoir 1966. Geology of the country around Canterbury and Folkestone |
| b. Teichert, et. al.1964. Treatise on Invertebrate Paleontology, Part K, Mollusca 3 ... Nautiloidea | |
| c. Swinnerton H.H. 1954. A Monograph of British Lower Cretaceous Belemnites; Part V |
| d. Spaeth Chr. 1973. Neohibolites ernsti and its occurrence in the Upper Albian of northwest Germany and England; in Casey & Rawson. 1973. The Boreal Lower Cretaceous |
| e. Whitten D.G.A. with J.R.V. Brooks.1972. The Penguin Dictionary of GEOLOGY |