Gorse Member (Ordovician of the United Kingdom)

Where: Scotland, United Kingdom (55.2° N, 4.7° W: paleocoordinates 22.2° S, 30.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Nemagraptus gracilis graptolite zone, Gorse Member (Doularg Formation), Aurelucian (458.4 - 456.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: platform or shelf-margin reef; lithified mudstone

• poorly bedded...small impure limestone nodules are largely decalcified

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: J. K. Ingham and R. P. Tripp. 1991. The trilobite fauna of the Middle Ordovician Doularg Formation of the Girvan district, Scotland, and its palaeoenvironmental significance. Transactions of the Royal Society of Edinburgh 82:27-54 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 181539: authorized by Melanie Hopkins, entered by Melanie Hopkins on 15.09.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Hibbertia wittingtoni
Trilobita
 Phacopida - Pliomeridae
Pliomerella sp.
Pliomerella sp. Reed 1941 trilobite
 Phacopida - Cheiruridae
Sphaerocoryphe sp., Sphaerexochus cf. arcuatus, Hadromeros sp.
Sphaerocoryphe sp. Angelin 1854 trilobite
Hadromeros sp. Lane 1971 trilobite
 Phacopida - Encrinuridae
Quinquecosta williamsi, Stiktocybele bathytera n. gen. n. sp., Encrinuroides sp., Encrinuroides obesus
Stiktocybele bathytera n. gen. n. sp. trilobite
Encrinuroides sp. Reed 1931 trilobite
Encrinuroides obesus Tripp 1965 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp.
Calyptaulax sp. Cooper 1930 trilobite
 Trinucleida - Raphiophoridae
Ampyx sp., Lonchodomas pernix
Ampyx sp. Dalman 1827 trilobite
 Asaphida - Nileidae
Nileus teres
Nileus teres trilobite
 Asaphida - Asaphidae
Isotelus sp.
Isotelus sp. Dekay 1824 trilobite
 Asaphida - Remopleurididae
Robergiella sp., Hypodicranotus sp., Remopleurides spp., Remopleurides bertilloni
Robergiella sp. Whittington 1959 trilobite
Hypodicranotus sp. Whittington 1952 trilobite
Remopleurides spp. Portlock 1843 trilobite
Remopleurides bertilloni Tripp 1976 trilobite
 Proetida - Aulacopleuridae
Harpidella sp.
Harpidella sp. M'Coy 1849 trilobite
 Proetida - Dimeropygidae
Dimeropyge hystrix, Mesotaphraspis sp., Toernquistia sp.
Mesotaphraspis sp. Whittington and Evitt 1953 trilobite
Toernquistia sp. Reed 1896 trilobite
 Proetida - Scharyiidae
Scharyia sp.
Scharyia sp. Pribyl 1946 trilobite
Questionably assigned to genus
 Proetida - Telephinidae
Telephina girvanensis, Phorocephala pelagia
Phorocephala pelagia Tripp 1965 trilobite
 Odontopleurida - Odontopleuridae
Ceratocephala sp.
Ceratocephala sp. Warder 1838 trilobite
 Lichida - Lichidae
Amphilichas priscus, Amphilichas spp., Hemiarges sp.
Amphilichas spp. Raymond 1905 trilobite
Hemiarges sp. Gürich 1901 trilobite
 Corynexochida - Illaenidae
Illaenus sp., Bumastoides scoticus
Illaenus sp. Dalman 1827 trilobite
Bumastoides scoticus trilobite
Questionably assigned to genus
 Corynexochida - Styginidae
Raymondaspis reedi
Artiopoda
 Agnostida - Metagnostidae
Arthrorhachis doulargensis