Hardhill Quarry, Caper Hill (Jurassic of the United Kingdom)

Where: Yorkshire, United Kingdom (54.4° N, 0.9° W: paleocoordinates 43.2° N, 9.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Dogger Formation, Aalenian (174.1 - 170.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; coarse-grained, brown, yellow sandstone

Size class: macrofossils

Primary reference: W. E. F. Macmillan. 1932. Notes on Dogger horizons in north-east Yorkshire. Proceedings of the Yorkshire Geological Society 22:122-132 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 220494: authorized by Alex Dunhill, entered by Bethany Allen on 04.06.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Rhynchonellida - Rhynchonellidae
Homoeorhynchia cynocephala
 Terebratulida -
Terebratulida indet.
Gastropoda
 Cerithioidea - Cerithiidae
Cerithium muricatum
Cerithium muricatum cerith snail
 Cerithioidea - Turritellidae
Turritella opalina
Turritella opalina Quenstedt 1852 turret shell
var. canina
 Sorbeoconcha - Naticidae
Natica adducta, Natica cf. adducta
Natica adducta moon snail
Natica cf. adducta moon snail
 Sorbeoconcha - Aporrhaidae
"Alaria unicarinata" = Dicroloma, "Alaria cf. laevigata" = Dicroloma
"Alaria unicarinata" = Dicroloma snail
"Alaria cf. laevigata" = Dicroloma snail
 Sorbeoconcha - Xenophoridae
Onustus pyramidatus
Onustus pyramidatus carrier shell
 Heterostropha - Mathildidae
Mathilda quadrivittata
Bivalvia
 Mytilida - Mytilidae
Modiolus cuneatus, "Modiolus imbricatus" = Modiolus (Modiolus) imbricatus
"Modiolus imbricatus" = Modiolus (Modiolus) imbricatus Sowerby 1818 mussel
 Arcida - Cucullaeidae
Cucullaea reticulata, Cucullaea cancellata
 Ostreida - Bakevelliidae
"Gervillia acuta" = Gervillella acuta, Gervillia tortuosa, Gervillia lata
"Gervillia acuta" = Gervillella acuta Sowerby 1826 oyster
 Ostreida - Pteriidae
"Pteroperna plana" = Pteria plana
"Pteroperna plana" = Pteria plana Morris and Lycett 1854 pearl oyster
 Ostreida - Ostreidae
Ostrea flabelloides
 Pectinida - Entoliidae
"Entolium demissum" = Entolium demissus
"Entolium demissum" = Entolium demissus Phillips 1835 scallop
 Pectinida - Pectinoidae
"Velata abjecta" = Eopecten, Camptonectes laminatus
"Velata abjecta" = Eopecten scallop
Camptonectes laminatus Sowerby 1818 scallop
 Pectinida - Limidae
Ctenostreon rugosum, "Lima (Plagiostoma) sp." = Plagiostoma
Ctenostreon rugosum Smith 1817 file clam
"Lima (Plagiostoma) sp." = Plagiostoma Sowerby 1814 file clam
 Trigoniida - Trigoniidae
Trigonia denticulata, Trigonia spinulosa
 Trigoniida - Myophorelloidae
"Trigonia vcostata" = Vaugonia vcostata
"Trigonia vcostata" = Vaugonia vcostata Lycett 1850 clam
 Pholadomyida - Pholadomyidae
Pholadomya heraulti, "Pholadomya fidicula" = Pholadomya (Pholadomya) fidicula
"Pholadomya fidicula" = Pholadomya (Pholadomya) fidicula Sowerby 1826 clam
 Cardiida - Cardiidae
Protocardia striatula
Protocardia striatula Sowerby 1829 cockle
 Cardiida - Arcticidae
Pronoella sp., Plesiocyprina cordiformis
Pronoella sp. Fischer 1887 clam
 Cardiida - Kalenteridae
Myoconcha sp.
Myoconcha sp. Sowerby 1824 clam
 Pholadida - Ceratomyidae
Ceratomya bajociana, Ceratomya sp.
Ceratomya sp. Sandberger 1864 clam
 Pholadida - Pleuromyidae
Pleuromya aequata
 Hiatellida - Hiatellidae
"Myopsis dilata" = Panopea (Myopsis)
"Myopsis dilata" = Panopea (Myopsis) clam
 Carditida - Astartidae
Astarte elegans, Astarte paupertina
Cephalopoda
 Ammonitida - Graphoceratidae
Leioceras costosum
Leioceras costosum Quenstedt 1886 ammonite