Tunnel Hill, Lower Barton Beds, Surrey (Eocene of the United Kingdom)

Where: England, United Kingdom (51.3° N, 0.6° W: paleocoordinates 49.8° N, 4.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Lower Member (Barton Beds Formation), Late/Upper Eocene (37.2 - 33.9 Ma)

• Gardner et al. consider the Bracklesham and Barton beds to be part of the Bagshot Formation, for this locality they describe four beds, some with specific fossils, but don't say which bed corresponds to which unit on their taxonomic list.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; concretionary, ferruginous, shelly/skeletal, yellow sandstone

• yellow sands, with casts of fossils, iron concretions, and shells

Size class: macrofossils

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42584: authorized by John Alroy, entered by Erin Leckey on 02.08.2004, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Bivalvia
 Ostreida - Ostreidae
"Ostrea plicata" = Cubitostrea plicata
"Ostrea plicata" = Cubitostrea plicata Solander 1766 oyster
 Pectinida - Pectinoidae
"Pecten carinatus" = Chlamys carinata
"Pecten carinatus" = Chlamys carinata Sowerby 1828 scallop
 Arcida - Glycymerididae
"Pectunculus deletus" = Glycymeris
"Pectunculus deletus" = Glycymeris clam
 Carditida - Carditidae
"Cardita sulcata" = Cyclocardia (Arcturellina) sulcata Solander 1766 clam
 Carditida - Crassatellidae
Crassatella ? sulcata Solander 1866 clam
 Pholadida - Corbulidae
"Corbula gallica" = Corbula (Bicorbula) gallica Lamarck 1801 clam
 Cardiida - Tellinidae
Tellina (Macaliopsis) scalaroides2 Lamarck 1806 tellin clam
 Cardiida - Cardiidae
Nemocardium turgidum Solander 1766 cockle
"Cardium porulosum" = Cardium (Orthocardium) porulosum Solander 1766 cockle
 Pandorida - Clavagellidae
"Clavagella coronata" = Stirpulina coronata
"Clavagella coronata" = Stirpulina coronata Deshayes 1824 clam
 Nuculida - Nuculidae
"Nucula similis" = Nucula (Pronucula) similis1
"Nucula similis" = Nucula (Pronucula) similis1 Cossmann and Pissarro 1904 nut clam
?
Gastropoda
 Opisthobranchia - Bullidae
 Opisthobranchia - Cylichnidae
"Bulla elliptica" = Cylichna elliptica
"Bulla elliptica" = Cylichna elliptica Sowerby 1824 snail
 Trochoidea - Trochidae
"Solarium crenulare" = Trochus (Solarium)
"Solarium crenulare" = Trochus (Solarium) top snail
 Sorbeoconcha - Littorinidae
 Sorbeoconcha - Naticidae
"Sigaretus clathratus" = Sinum moon snail
Natica ambulacrum moon snail
Natica patula moon snail
Natica labellata Lamarck 1804 moon snail
 Sorbeoconcha - Strombidae
Terebellum fusiforme Lamarck 1802 true conch
Rimella rimosa Solander 1766 true conch
 Sorbeoconcha - Cassidae
"Cassidaria nodosa" = Galeodea (Mambrinia) nodosa
"Cassidaria nodosa" = Galeodea (Mambrinia) nodosa Solander in Brander 1766 snail
 Neogastropoda - Borsoniidae
"Pleurotoma biconus" = Asthenotoma biconus
"Pleurotoma biconus" = Asthenotoma biconus Edwards 1861 snail
 Neogastropoda - Mitridae
 Neogastropoda - Olividae
"Ancillaria canalifera" = Ancilla
"Ancillaria canalifera" = Ancilla olive snail
 Neogastropoda - Buccinidae
 Neogastropoda - Nassariidae
 Sorbeoconcha - Xenophoridae
Xenophora umbilicaris carrier shell
 Neotaenioglossa - Calyptraeidae
Trochita aperta Solander 1766 slipper shell
 Cerithioidea - Turritellidae
"Turritella imbricataria" = Haustator imbricataria
"Turritella imbricataria" = Haustator imbricataria Lamarck 1804 turret shell
Scaphopoda
 Dentaliida - Dentaliidae