Felixkirk Borehole, 30.10-49.01m (Jurassic of the United Kingdom)

Where: Yorkshire, United Kingdom (54.3° N, 1.3° W)

• Paleocoordinates: 41.4° N, 19.3° E (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Harpoceras falciferum zone, Whitby Mudstone Formation, Late/Upper Toarcian (180.1 - 175.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; calcareous shale

Size class: macrofossils

Collection methods: Bolehole drilled by the British Geological Survey, Keyworth, Nottingham, UK

Primary reference: H. C. Ivimey-Cook and J. H. Powell. 1991. Late Triassic and early Jurassic biostratigraphy of the Felixkirk Borehole, North Yorkshire. Proceedings of the Yorkshire Geological Society 48(4):367-374 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 219476: authorized by Alex Dunhill, entered by Bethany Allen on 12.04.2021

Creative Commons license: CC0 (CC0)

Taxonomic list

Bivalvia
 Myalinida - Inoceramidae
Inoceramidae indet. Giebel 1852 clam
 Pectinida - Oxytomidae
Meleagrinella sp. Whitfield 1855 scallop
 Ostreida - Posidoniidae
Steinmannia sp. Fischer 1886 oyster
Cephalopoda
 Phylloceratida - Phylloceratidae
Phylloceras heterophyllum Sowerby 1820 ammonite
 Ammonitida - Hildoceratidae
"Harpoceras elegans" = Eleganticeras elegans, "Harpoceras exaratum" = Eleganticeras exaratum, Harpoceras sp., Hildaites levisoni
"Harpoceras elegans" = Eleganticeras elegans Sowerby 1815 ammonite
"Harpoceras exaratum" = Eleganticeras exaratum Young and Bird 1828 ammonite
Harpoceras sp. ammonite
Hildaites levisoni Simpson 1843 ammonite
 Ammonitida - Dactylioceratidae
Dactylioceras toxophorum Buckman 1926 ammonite