Seven Rock Point, Lyme Regis, UK (Jurassic to of the United Kingdom)

Also known as misspelled as Severn Rock Point in paper

Where: England, United Kingdom (50.7° N, 3.0° W: paleocoordinates 37.1° N, 2.6° E)

When: Blue Lias Formation (Lias Group), Hettangian to Hettangian (201.3 - 190.8 Ma)

• beds 7-31 of Lang's (1924) in upper part of Blue Lias

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified limestone and lithified marl

• "Rhythmically bedded with symmetrical rhythms consisting of laminated black shale followed by dark then pale marls (sometimes cemented into pale limestones) and back to laminated black shale" Represents shallow shelf.
• Limestones, marls, laminated black shales

Size class: macrofossils

Preservation: trace

Primary reference: H. V. Moghadam and C. R. C. Paul. 2000. Trace fossils of the Jurassic, Blue Lias, Lyme Regis, Southern England. Ichnos 7(4):283 -306 [R. Plotnick/R. Plotnick]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 176124: authorized by Roy Plotnick, entered by Roy Plotnick on 29.01.2016, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

 Isocrinida - Isocrinidae
Isocrinus sp. von Meyer 1836 Sea lily
 Nautilida -
Nautilida indet. Agassiz 1847 nautiloid
 Ammonitida - Arietitidae
Coroniceras sp. Hyatt 1867 ammonite
 Ostreida - Bakevelliidae
Gervillia sp. Defrance 1820 oyster
 Ostreida - Gryphaeidae
Gryphaea sp. Lamarck 1801 oyster
Liostrea sp. Douvillé 1904 oyster
 Pectinida - Limidae
Plagiostoma sp. Sowerby 1814 file clam
 Rhynchonellida - Wellerellidae
Calcirhynchia sp. Buckman 1917
 Ichnofossils -
Rhizocorallium sp. Zenker 1836
Planolites sp. Nicholson 1873
Diplocraterion sp. Torell 1870
Taenidium sp. Heer 1877
Arenicolites sp. Salter 1857
Palaeophycus sp. Hall 1847
Rosselia sp. Dahmer 1937
Chondrites sp. von Sternberg 1833