Dalfask (trilobites) (Ordovician of the United Kingdom)

Where: Scotland, United Kingdom (54.8° N, 4.1° W: paleocoordinates 49.2° S, 18.1° W)

• coordinate estimated from map

When: Climacograptus peltifer graptolite zone, Laggan Member (Balclatchie Formation), Sandbian (458.4 - 453.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: offshore; lithified, pebbly, gray, blue, calcareous siltstone and lithified, pebbly, gray, blue, calcareous mudstone

• Buff-weathering blue-grey mudstones and pebbly greywackes

Size classes: macrofossils, mesofossils

Collected by R.P. Tripp

Primary reference: R. P. Tripp. 1980. Trilobites from the Ordovician Balclatchie and lower Ardwell groups of the Girvan district, Scotland. Transactions of the Royal Society of Edinburgh 71:123-145 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 208115: authorized by Melanie Hopkins, entered by Melanie Hopkins on 20.03.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Odontopleurida - Odontopleuridae
Diacanthaspis lalage
Diacanthaspis lalage Wyville Thomson 1857 trilobite
 Asaphida - Remopleurididae
Robergia barrandii, Robergiella correcta, Robergiella neteorum
Robergia barrandii Nicholson and Etheridge 1879 trilobite
Robergiella correcta Reed 1903 trilobite
Robergiella neteorum Tripp 1980 trilobite
 Asaphida - Asaphidae
Asaphidae indet.
Asaphidae indet. Burmeister 1843 trilobite
 Trinucleida - Raphiophoridae
Salteria primaeva, "Ampyx hornei" = Anisonotus hornei, Ampyxina aff. powelli, Raymondella macconochiei, Lonchodomas macallumi
Salteria primaeva Wyville Thomson 1864 trilobite
"Ampyx hornei" = Anisonotus hornei Nicholson and Etheridge 1879 trilobite
Ampyxina aff. powelli Raymond 1920 trilobite
Raymondella macconochiei Nicholson and Etheridge 1879 trilobite
 Trinucleida - Trinucleidae
Tretaspis sp.
Tretaspis sp. M'Coy 1849 trilobite
 Proetida - Dimeropygidae
? Mesotaphraspis dalfaskensis n. sp., Toernquistia translata
? Mesotaphraspis dalfaskensis n. sp. Tripp 1980 trilobite
 Proetida - Scharyiidae
Panarchaeogonus sp.
Panarchaeogonus sp. Oepik 1937 trilobite
 Olenida - Olenidae
Porterfieldia caecigena
Porterfieldia caecigena Raymond 1920 trilobite
 Corynexochida - Illaenidae
Stenopareia balclatchiensis
Stenopareia balclatchiensis Reed 1904 trilobite
 Corynexochida - Styginidae
Bronteopsis concentrica, Raymondaspis sp.
Bronteopsis concentrica Nicholson and Etheridge 1879 trilobite
Raymondaspis sp. Pribyl 1948 trilobite
 Phacopida - Cheiruridae
"Nieszkowskia unica" = Hammannopyge unica, Sphaerocoryphe pemphis
"Nieszkowskia unica" = Hammannopyge unica Thomson 1857 trilobite
 Phacopida - Encrinuridae
Cybellela sp.
Cybellela sp. Reed 1928 trilobite
Artiopoda
 Agnostida - Metagnostidae
Arthrorhachis sp.
Arthrorhachis sp. Hawle and Corda 1847