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A
Jurassic Coast information site. By Christopher M. PamplinB.Sc.(hons.)
A
collection of Ammonite specimens from the Lower Jurassic of Dorset and Somerset,
South West England. Dorset's Jurassic Coast, Lyme Regis, Charmouth, and inland
sites.
The World
Heritage Coast of Devon & Dorset. |
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| The following gallery pages
are intended to provide a reference for the more serious collector of ammonite
fossils. The ammonites are grouped systematically to assist in recognition of
morphological features. |
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| There
are many species of ammonite fossil which have been identified from the Jurassic
and Cretaceous periods of Earth history. To cover all would be a mammoth
task indeed. This collection is based on my own fossils and those which my friends
who live on the Dorset Coast have collected. It is therefore far from a complete
record of species, but reflects those ammonites which can be found with a little
luck along the Dorset Coast and at a few inland and coastal sites of Somerset.
It concentrates therefore on Jurassic ammonites, particularly on those
of the Lower Jurassic. It is envisaged that the collection will grow as
new specimens are photographed and added to the site. I hope you enjoy your visit.
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| The
list below contains picture links to the gallery pages. Hold the mouse pointer
over the picture to see the name of the ammonite. Click your left mouse button
on the picture you wish to view. Use the back button on the gallery page to return. |
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| Cephalopoda,
Ammonoidea, Ammonitina. |
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| Superfamily PSILOCERATACEAE Hyatt 1867 |
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| Family PSILOCERATIDAE Hyatt
1867 |
| Characterised by evolute, smooth or blunt primary
ribbing, some with feeble keels. Restricted to the Lower Jurassic, Hettangian
and Sinemurian Stages. |
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| Family SCHLOTHEIMIIDAE
Spath 1923 |
| Non recorded |
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| Family ARIETITIDAE Hyatt 1874 |
| Characterised by being large or gigantic to medium sized ammonites, strongly
ribbed in general, some tuberculate, with carinate or carinate-bisulcate venter
and well defined sutures. Restricted to the Lower Jurassic, Sinemurian Stage. |
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| Family OXYNOTICERATIDAE
Hyatt 1875 |
| oxycone. |
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| Family ECHIOCERATIDAE
Buckman 1913 |
| Evolute, many whorled, keeled. |
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| Superfamily
EODEROCERATACEAE Spath 1929 |
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| Family EODEROCERATIDAE Spath 1929 |
| Evolute, loosely coiled forms with little overlap of whorls. |
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| Family POLYMORPHITIDAE
Haug 1887 |
| Evolute, compressed, simply ribbed or smooth
with a wide variety of venters. |
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| Family LIPAROCERATIDAE
Hyatt 1867 |
| A highly polymorphic family, comprising
of sphaerocones, capricorns and dimorphs. |
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| Family AMALTHEIDAE
Hyatt 1867 |
| Discoidal oxycones evolving into strongly
ribbed and spinous planulates. |
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| Family DACTYLIOCERATDAE
Hyatt 1867 |
| Not recorded |
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| Superfamily HILDOCERATACEAE Hyatt 1867 |
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| Family HILDOCERATIDAE Hyatt
1867 |
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| Family GRAPHOCERATIDAE
Buckman 1905 |
| Non recorded |
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| Family HAMMATOCERATIDAE Buckman 1887 |
| Non recorded |
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| Family
SONNINIIDAE Buckman 1892 |
| Non recorded |
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| Links
to other sites |
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| Jurassic
Cliffs |
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| Charmouth
Fossils @ www.charmouthfossils.co.uk |
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| The
Geologists' Association of London |
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| Jurassic
Ammonites of France |
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| Ammonites.
A French site which is well worth a visit |
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| My
thanks to all those who helped in the making of this site. |
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