Buckland Newton [Lower Chalk, basal] (Cretaceous of the United Kingdom)

Where: England, United Kingdom (50.8° N, 2.5° W: paleocoordinates 39.6° N, 0.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mantelliceras mantelli ammonoid zone, Lower Chalk Formation, Early/Lower Cenomanian (99.6 - 93.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Lower Chalk, which overlies the Upper Greensand (Late Albian). AGE: Early Cenomanian, on the basis of ammonite biostratigraphy; Mantelliceras mantelli zone. STRATIGRAPHIC POSITION: From basement bed of the Lower Chalk; O. mantelliana band.

• bed-level stratigraphic resolution

Environment/lithology: lithified, burrowed, glauconitic, phosphatic, gray, green lime mudstone

• COMMENTS: Marine carbonate setting.
• SPECIFIC LITHOLOGY: Grey-green or buff, glauconitic and intensely burrowed chalk, with many small phosphatic nodules and phosphatised fossils. LITHIFICATION: Lithified, on the basis of facies description.

Size class: macrofossils

Preservation: cast, mold/impression, replaced with phosphate

Collection methods: bulk,

• COLLECTOR: W. J. Kennedy. REPOSITORY: Unknown, probably the BMNH.

Primary reference: W. J. Kennedy. 1970. A correlation of the uppermost Albian and the Cenomanian of South-West England. Proceedings of the Geologist's Association 81(4):613-677 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 82814: authorized by Austin Hendy, entered by Austin Hendy on 01.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoidea, bivalvia, gastropoda, and other macrofossils. NOMENCLATURE: Not an authoritative publication and with somewhat antiquated nomenclature. Ammonoidea generally identified to species resolution while bivalves, gastropods and other macrofossils may not.
Show authors, comments, and common names
unclassified
  -
Stromohamites simplex
Cephalopoda
 Ammonitida - Forbesiceratidae
Forbesiceras cf. largilliertianum
Forbesiceras cf. largilliertianum d'Orbigny 1841 ammonite
 Ammonitida - Acanthoceratidae
Acanthoceras sp., Acanthoceras cf. rhotomagense, Calycoceras sp., Mantelliceras sp., Mantelliceras saxbii
Acanthoceras sp. Neumayr 1875 ammonite
Acanthoceras cf. rhotomagense Brongniart 1822 ammonite
Calycoceras sp. Hyatt 1900 ammonite
Mantelliceras sp. Hyatt 1903 ammonite
Mantelliceras saxbii Sharpe 1857 ammonite
 Ammonitida - Schloenbachiidae
Schloenbachia subvarians, Schloenbachia cf. ventricosa, Schloenbachia cf. nodulosa, Schloenbachia varians, "Schloenbachia subtuberculata" = Schloenbachia varians subtuberculata
Schloenbachia varians Sowerby 1817 ammonite
"Schloenbachia subtuberculata" = Schloenbachia varians subtuberculata Gerhardt 1897 ammonite
 Ammonitida - Hoplitidae
Hyphoplites sp., "Hyphoplites cf. arausionensis" = Hyphoplites curvatus arausionensis
Hyphoplites sp. Spath 1922 ammonite
"Hyphoplites cf. arausionensis" = Hyphoplites curvatus arausionensis Hébert and Munier-Chalmas 1875 ammonite
 Ammonitida - Anisoceratidae
Anisoceras sp.
Anisoceras sp. Pictet 1854 ammonite
 Ammonitida - Turrilitidae
Turrilites sp., Turrilites costatus, Ostlingoceras puzosianum
Turrilites sp. Lamarck 1801 ammonite
Turrilites costatus Lamarck 1801 ammonite
Ostlingoceras puzosianum d'Orbigny 1842 ammonite
 Ammonitida - Baculitidae
"Sciponoceras baculoide" = Sciponoceras baculoides
"Sciponoceras baculoide" = Sciponoceras baculoides Mantell 1822 ammonite
 Ammonitida - Scaphitidae
Scaphites sp., Scaphites obliquus
Scaphites sp. Parkinson 1811 ammonite
Scaphites obliquus Sowerby 1813 ammonite
 Nautilida - Nautilidae
Pseudocenoceras sp., Eutrephoceras sp., Eutrephoceras expansum
Pseudocenoceras sp. Spath 1927 nautiloid
Eutrephoceras sp. Hyatt 1894 nautiloid
Eutrephoceras expansum Sowerby 1824 nautiloid
Gastropoda
 Heterostropha - Ringiculidae
Avellana sp.
Avellana sp. d'Orbigny 1842 snail
 Sorbeoconcha - Colombellinidae
"Columbellina sp." = Colombellina
"Columbellina sp." = Colombellina d'Orbigny 1842 snail
 Sorbeoconcha - Naticidae
Gyrodes genti
Gyrodes genti moon snail
 Trochoidea - Trochidae
"Trochus" sp.
"Trochus" sp. Linnaeus 1758 top snail
 Pleurotomarioidea - Pleurotomariidae
Pleurotomariidae indet., Pleurotomaria sp.
Pleurotomariidae indet. Swainson 1840 snail
Pleurotomaria sp. Defrance 1826 snail
 Lepetellida - Fissurellidae
Fissurellidae indet.
Fissurellidae indet. Fleming 1822 snail
Bivalvia
 Myalinida - Inoceramidae
Inoceramus sp.
Inoceramus sp. Sowerby 1814 clam
 Arcida - Cucullaeidae
Cucullaea mailleana
 Lucinida - Mactromyidae
Unicardium ringmeriense
Rhynchonellata
 Rhynchonellida - Basiliolidae
Orbirhynchia mantelliana
Orbirhynchia mantelliana d'Sowerby 1826
 Terebratulida - Terebratulidae
Terebratulidae indet.
Echinoidea
 Holasteroida - Holasteridae
Holaster laevis, Holaster subglobosus
Holaster laevis sea urchin