Coombe Quarry, Mapperton, Bed 2c,d (Jurassic of the United Kingdom)

Where: United Kingdom (50.8° N, 2.7° W: paleocoordinates 39.2° N, 8.4° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Scissum ammonoid zone, Opalinum (175.6 - 171.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; ferruginous, brown conglomerate and lithified, burrowed, fine-grained, ooidal limestone

• 2c-conglomerate, a mass of pebbles, crusts, limonitic pockets in a matrix of dense ironshot, highly ferruginous,weathering dark brown

•2d-limestone, fine-grained, hard, dark grey ironshot oosparite, small to medium-sized ooliths, poorly sorted, in clouds, intensely and coarsely burrowed

Size class: macrofossils

Primary reference: R. Chandler and J. Callomon. 2009. The Inferior Oolite at Coombe Quarry, near Mapperton, Dorset, and a new Middle Jurassic ammonite faunal horizon, Aa-3b, Leioceras comptocostosum n.biosp. in the Scissum Zone of the Lower Aalenian. Proceedings of the Dorset Natural History and Archaeological Society 130:99-132 [M. Aberhan/T. Schossleitner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 141362: authorized by Martin Aberhan, entered by Thomas Schossleitner on 26.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Cucullaeidae
 Pectinida -
"Entolium corneolum" = Entolium (Entolium) corneolum
"Entolium corneolum" = Entolium (Entolium) corneolum Young and Bird 1828 scallop
 Pectinida - Limidae
"Ctenostreon pectiniformis" = Ctenostreon rugosum
"Ctenostreon pectiniformis" = Ctenostreon rugosum Smith 1817 file clam
 Ostreida - Bakevelliidae
Gervillella sp. Waagen 1907 oyster
 Mytilida - Mytilidae
"Inoperna plicatus" = Mytilus (Pharomytilus) plicatus
"Inoperna plicatus" = Mytilus (Pharomytilus) plicatus Sowerby 1819 mussel
 Pholadida - Ceratomyidae
 Pholadida - Pleuromyidae
Pleuromya sp. Agassiz 1845 clam
Pleuromya uniformis Sowerby 1813 clam
 Megalodontida - Dicerocardiidae
 Pholadomyida - Pholadomyidae
"Pholadomya fidicula" = Pholadomya (Pholadomya) fidicula
"Pholadomya fidicula" = Pholadomya (Pholadomya) fidicula Sowerby 1826 clam
 Trigoniida - Trigoniidae
 Neogastropoda - Turridae
 Naticoidea - Naticidae
 Turbinoidea - Turbinidae
"Delphinula altaacanthica" = Angaria
"Delphinula altaacanthica" = Angaria snail
D. alta-acanthica
 Pleurotomariida - Pleurotomariidae
"Pyrgotrochus punctatus" = Leptomaria punctata, Perotrochus allionta, "Pleurotomaria (Talantodiscus) mirabilis" = Talantodiscus, "Pleurotomaria (Talantodiscus) baugieri" = Talantodiscus, "Pleurotomaria actinomphala" = Pleurotomaria rotundata, Pyrgotrochus punctata, Pyrgotrochus bicingulata, Pyrgotrochus elongatus
"Pyrgotrochus punctatus" = Leptomaria punctata Sowerby 1821 snail
"Pleurotomaria (Talantodiscus) mirabilis" = Talantodiscus snail
"Pleurotomaria (Talantodiscus) baugieri" = Talantodiscus snail
"Pleurotomaria actinomphala" = Pleurotomaria rotundata Bosch 1998 snail
Pyrgotrochus elongatus Sowerby 1818 snail
 Vetigastropoda - Cirridae
 Vetigastropoda - Discohelicidae
 Trochoidea - Ataphridae
"Ataphrus laevigatus" = Ataphrus acmon
"Ataphrus laevigatus" = Ataphrus acmon Orbigny 1853 snail
 Ammonitida - Graphoceratidae
Leioceras comptocostosum n. sp., "Vacekia stephensi" = Brasilia
Leioceras comptocostosum n. sp. Chandler and Callomon 2009 ammonite
"Vacekia stephensi" = Brasilia ammonite
 Ammonitida - Hildoceratidae
Tmetoceras scissum Benecke 1865 ammonite
 Ammonitida - Hammatoceratidae
Bredyia sp. ammonite
Planammatoceras planinsigne Vacek 1886 ammonite
Hammatoceras lorteti Dumortier 1874 ammonite
Erycites barodiscus Gemmellaro 1886 ammonite
 Ammonitida - Lytoceratidae
Pachylytoceras wrighti Buckman 1905 ammonite
 Scleractinia - Microsolenidae
Chomatoseris sp. Thomas 1935 stony coral