Alum Bay, Middle Barton Beds, Isle of Wight: Late/Upper Eocene, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
- Zanthopsidae
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Cancer leachii
Desmarest 1822
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| recombined as Zanthopsis leachii | ||||||||||
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium planum
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Prestwich 1846 | |||||||||
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Gastropoda
- Cerithiidae
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Cerithium sp.
Bruguière 1789
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Prestwich 1846 | |||||||||
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Gastropoda
- Turritellidae
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Turritella edita
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Turritella imbricataria
Lamarck 1804
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Prestwich 1846 | |||||||||
| recombined as Haustator imbricataria | ||||||||||
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Turritella conoidea
Sowerby 1814
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| recombined as Haustator conoidea | ||||||||||
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Turritella elongata
Sowerby 1814
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| recombined as Haustator elongatus | ||||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea trochiformis
(Gmelin 1791)
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Prestwich 1846 | |||||||||
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= Calyptraea (Trochita) aperta
Solander 1766
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Vokes 1975 | |||||||||
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Gastropoda
- Vermetidae
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Vermetus bognorensis
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Prestwich 1846 | |||||||||
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Gastropoda
- Ficidae
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Pyrula sp.
Lamarck 1799
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Prestwich 1846 | |||||||||
| synonym of Ficus | ||||||||||
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Gastropoda
- Strombidae
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Rostellaria sowerbyi
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Prestwich 1846 | |||||||||
| synonym of Tibia | ||||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Murex innexus
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Gastropoda
- Neogastropoda
- Nassariidae
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Fusus sp.
Bruguière 1789
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Prestwich 1846 | |||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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Buccinum desertum
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Gastropoda
- Neogastropoda
- Turridae
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Pleurotoma sp.
Lamarck 1800
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Prestwich 1846 | |||||||||
| synonym of Turris | ||||||||||
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Gastropoda
- Naticidae
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Natica sp.
Scopoli 1777
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Prestwich 1846 | |||||||||
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Bivalvia
- Nuculida
- Nuculidae
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Nucula amygdaloides
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Nucula similis
Cossmann and Pissarro 1904
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| recombined as Nucula (Pronucula) similis | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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| two species | ||||||||||
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Bivalvia
- Ostreida
- Pinnidae
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Pinna affinis
Sowerby 1821
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Prestwich 1846 | |||||||||
| recombined as Atrina affinis | ||||||||||
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Bivalvia
- Arcida
- Glycymerididae
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Pectunculus brevirostris
Sowerby 1824
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Prestwich 1846 | |||||||||
| recombined as Glycymeris brevirostris | ||||||||||
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Cardita margaritacea
Sowerby 1821
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= Pholadomya margaritacea
Sowerby 1821
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Prestwich 1846 | |||||||||
| recombined as Pholadomya (Bucardiomya) margaritacea | ||||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Corbula sp.
Bruguière 1789
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Prestwich 1846 | |||||||||
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Bivalvia
- Cardiida
- Mactridae
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Lutraria sp.
Lamarck 1799
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Prestwich 1846 | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Venus sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Cardiidae
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Cardium semigranulatum
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopaea virgula
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Prestwich 1846 | |||||||||
| corrected as Panopea | ||||||||||
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Mya intermedia
Sowerby 1814
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= Panopaea intermedia
Sowerby 1814
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Prestwich 1846 | |||||||||
| recombined as Panopea intermedia | ||||||||||
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Bivalvia
- Carditida
- Carditidae
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Venericardia planicostata
(Lamarck 1801)
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| recombined as Venericor planicosta | ||||||||||
| var. ?Suessonensis | ||||||||||
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Chondrichthyes
- Selachii
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Selachii indet.
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Prestwich 1846 | |||||||||
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unclassified
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Plantae indet.
Haeckel 1866
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Prestwich 1846 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | England |
| Coordinates: | 50.7° North, 1.6° West (view map) | ||
| Paleocoordinates: | 49.1° North, 5.5° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | local area |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Late/Upper Eocene | ||
| Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
| Formation: | Barton Beds | Member: | Middle | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: beds 4-6 (numbered from bottom to top). Prestwich's stratigraphy is a bit screwy. No one else has recognized the London Clay in this area. This bed is probably part of the Barton Beds (Bosma, 1974). Gardner et al. are the first I've found who call these Barton Beds. | |||||
Lithology and environment
| Primary lithology: | sandy claystone |
| Secondary lithology: | pebbly,brown,gray,green,red sandy,calcareous,carbonaceous claystone |
| Lithology description: Dark brown sandy clay with two layers of septaria. A few remains of shells and traces of plants occur in this bed, together with a seam of small flint pebbles. Top of the bed darkest and most fossiliferous. This bed underlain by sand with clay seam which is underlain by dark brown clay, with several layers of septaria, and one thin band of calcareous greenish grey sandstone. The lower part slightly red. At the bottom a thickness of one to two feet is mixed with sand, and contains large rounded flint pebbles. another layer of small flint pebbles occurs near the centre. Organic remains, which are scarce in the lower part, are numerous higher up, especially in the bed containing the small pebbles. Among the large pebbles at the bottom, sharks' teeth are found. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Prestwich claims that Bowerbank's Cancer Leachii goes with this bed, but it doesn't seem to fit with the strat columns in both papers. Bowerbank puts this bed at the top of the London Clay, while Prestwich puts it at the bottom. | |
Metadata
| Also known as: | "London Clay" (Beds 4-6) | ||
| Database number: | 39696 | ||
| Authorizer: | J. Alroy, A. Hendy | Enterer: | E. Leckey, A. Hendy |
| Modifier: | E. Leckey | Research group: | marine invertebrate,paleobotany,vertebrate |
| Created: | 2004-06-03 11:46:53 | Last modified: | 2004-08-02 14:43:41 |
| Access level: | the public | Released: | 2004-06-03 11:46:53 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 10907. | J. S. Bowerbank. 1839. On the London and Plastic Clay Formations of the Isle of Wight. Transactions of the Geological Society of London, series 2 6:169-172 [J. Alroy/E. Leckey/P. Wagner] |
Secondary references:
| 11308 | J. S. Garnder, H. Keeping, and H. W. Monckton. 1888. The Upper Eocene, comprising the Barton and Upper Bagshot Formations. Quarterly Journal of the Geological Society of London 44:578-635 [J. Alroy/E. Leckey/E. Leckey] | |
| 10745 | J. Prestwich. 1846. On the Tertiary or SupraCretaceous Formations of the Isle of Wight as exhibited in the sections at Alum Bay and White Cliff Bay. Quarterly Journal of the Geological Society of London 2:233-259 [J. Alroy/E. Leckey/E. Leckey] | |
| 31302 | E. H. Vokes. 1975. Notes on the fauna of the Chipola Formation - XVIII. Some new or otherwise interesting members of the Calyptraeidae (Mollusca: Gastropoda). Tulane Studies in Geology and Paleontology 11(1-2):163-172 [A. Hendy/A. Hendy/A. Hendy] |