Dorset 7 (Jurassic of the United Kingdom)

Where: England, United Kingdom (50.0° N, 2.0° W: paleocoordinates 36.9° N, 4.8° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Arietites bucklandi zone, Blue Lias Formation (Lias Group), Early/Lower Sinemurian (196.5 - 189.6 Ma)

• Arietites bucklandi Zone, bucklandi Subzone

• formation-level stratigraphic resolution

Environment/lithology: offshore ramp; lithified lithology not reported and poorly lithified marl

Size class: macrofossils

Primary reference: A. Hallam. 1960. A sedimentary and faunal study of the Blue Lias of Dorset and Glamorgan. Philosophical Transactions of the Royal Society, London 243:1-44 [F. Fursich/A. Tomasovych/A. Tomasovych]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 29239: authorized by Franz Fursich, entered by Adam Tomasovych on 27.03.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Lucinida - Lucinidae
 Pectinida - Entolioidesidae
"Chlamys ? calva" = Calvaentolium calvum
"Chlamys ? calva" = Calvaentolium calvum Goldfuss 1836 scallop
 Pectinida - Oxytomidae
"Oxytoma inaequivalve" = Oxytoma inequivalvis
"Oxytoma inaequivalve" = Oxytoma inequivalvis Sowerby 1819 scallop
 Pectinida - Anomiidae
Placunopsis striatula Oppel 1856 scallop
 Pectinida - Limidae
Lima (Plagiostoma) giganteum Sowerby 1814 file clam
Pseudolimea pectinoides Sowerby 1815 file clam
 Pectinida - Pectinoidae
Chlamys textoria Schlotheim 1820 scallop
 Ostreida - Bakevelliidae
 Ostreida - Gryphaeidae
Gryphaea arcuata Lamarck 1801 oyster
Cephalopoda
 Nautilida - Cenoceratidae
"Nautilus striatus" = Cenoceras striatum
"Nautilus striatus" = Cenoceras striatum Sowerby 1817 nautiloid
 Ammonitida - Arietitidae
Arnioceras aff. semicostatum Young and Bird 1828 ammonite
 Ammonitida - Schlotheimiidae
"Charmasseiceras sp." = Angulaticeras
"Charmasseiceras sp." = Angulaticeras Quenstedt 1882 ammonite
Rhynchonellata
 Rhynchonellida - Rhynchonellidae
Piarorhynchia juvenis Quenstedt 1852
 Rhynchonellida - Wellerellidae
Crinoidea
 Isocrinida - Isocrinidae