Ryd Limestone Assemblage, Vastergotland, Sweden (Ordovician of Sweden)

Where: Sweden (58.0° N, 14.0° E: paleocoordinates 36.3° S, 9.2° W)

• local area-level geographic resolution

When: Ryd Limestone Formation, Early/Lower Llandeilo (466.0 - 460.9 Ma)

• formation-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, gray lime mudstone

• Finely nodular grey to brown lime mudstone

Primary reference: V. Jaanusson. 1965. The Viruan (Middle Ordovician) of Kinnekulle and northern Billingen, Vastergotland. Bulletin of Geological Institutions of the University of Uppsala 43(1):1-73 [A. Miller/P. Novack-Gottshall/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2940: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 22.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Climacograptidae
Pseudoclimacograptus sp.
Cephalopoda
 Tarphycerida - Trocholitidae
? Trocholites sp., ? Curtoceras sp.
? Trocholites sp. Conrad 1838
originally entered as "Trocholites? sp."
? Curtoceras sp. Ulrich et al. 1942
originally entered as "Curtoceras? sp."
 Lituitida - Lituitidae
? Ancistroceras sp., ? Lituites sp.
? Ancistroceras sp. Remele 1881
originally entered as "Ancistroceras? sp."
? Lituites sp. Bertrand 1763
originally entered as "Lituites? sp."
Paragastropoda
 Mimospirida - Clisospiridae
Clisospira sp.
Clisospira sp. Billings 1865
Trilobita
 Trinucleida - Raphiophoridae
Lonchodomas sp.
Lonchodomas sp. Angelin 1854 trilobite
 Trinucleida - Trinucleidae
? Reedolithus sp.
? Reedolithus sp. Bancroft 1929 trilobite
originally entered as "Reedolithus? sp."
 Asaphida - Remopleurididae
Remopleurides sp.
Remopleurides sp. Portlock 1843 trilobite
 Asaphida - Nileidae
Nileus sp.
Nileus sp. Dalman 1827 trilobite
 Corynexochida - Illaenidae
Illaenus sp.
Illaenus sp. Dalman 1827 trilobite
 Corynexochida - Panderiidae
Panderia sp.
Panderia sp. Volborth 1863 trilobite
 Proetida - Telephinidae
Telephina sp.
Telephina sp. Marek 1952 trilobite
Artiopoda
 Agnostida - Metagnostidae
Trinodus sp.
Trinodus sp. M'Coy 1846
Ostracoda
 Palaeocopida - Tvaerenellidae
Euprimites sp.
Euprimites sp. Hessland 1949 ostracod
 Palaeocopida - Tetradellidae
Sigmobolbina sp., Tallinnella sp.
Sigmobolbina sp. Henningsmoen 1953 ostracod
Tallinnella sp. Opik 1937 ostracod
 Palaeocopida - Eurychilinidae
Laccochilina sp.
Laccochilina sp. Hessland 1949 ostracod
 Palaeocopida - Ctenonotellidae
Steusloffia sp.
Steusloffia sp. Ulrich and Bassler 1908 ostracod
 Palaeocopida - Sigmoopsidae
Sigmoopsis sp.