Dalby Formation. Bed 84.90-88.56 (Ordovician of Sweden)

Where: Vastergotland, Sweden (58.0° N, 12.0° E: paleocoordinates 33.7° S, 8.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lower Member (Dalby Formation), Caradoc (458.4 - 449.5 Ma)

• Listed as Lower Caradoc

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, gray, argillaceous mudstone and lithified, bentonitic, calcareous mudstone

• Environment listed as Deep Mid-shelf. Horizontal worm trails are common
• Gray and dark-gray argillaceous limestone intercalated with thin, irregularly-bedded (lenses?), dark gray, calcareous mudstone and thin, biotite-rich bentonite layers

Size classes: macrofossils, mesofossils, microfossils

Preservation: trace

Collection methods: 7 cm diameter core sample, but with some vertical averaging; equivalent to Estonian age C2 according to Sheehan, 1979: 64

Primary reference: P. Thorslund. 1948. The Chasmops Series of the Kullatorp Core. Bulletin of the Geological Institutions of the University of Uppsala, New Series 32:343-373 [P. Novack-Gottshall/P. Hearn]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 76909: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 07.12.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

 Rhombifera - Echinosphaeritidae
Echinosphaerites sp. Wahlenberg 1818
Pterobranchia
 Graptoloidea - Diplograptidae
"Glyptograptus cf. teretiusculus" = Hustedograptus teretiusculus
"Glyptograptus cf. teretiusculus" = Hustedograptus teretiusculus Hisinger 1840 graptolite
 Graptoloidea - Climacograptidae
"Climacograptus scharenbergi" = Pseudoclimacograptus scharenbergi
"Climacograptus scharenbergi" = Pseudoclimacograptus scharenbergi Lapworth 1976 climacograptid
Rhynchonellata
 Orthida - Dalmanellidae
Onniella sp. Bancroft 1928
Strophomenata
 Strophomenida - Leptellinidae
Palaeostrophomena sp. Holtedahl 1916
Paragastropoda
 Mimospirida - Clisospiridae
Clisospira sp. Billings 1865
Ostracoda
 Palaeocopida - Sigmoopsidae
 Palaeocopida - Ctenonotellidae
Steusloffia sp. Ulrich and Bassler 1908 ostracod
 Palaeocopida - Eurychilinidae
Laccochilina sp. Hessland 1949 ostracod
 Palaeocopida - Tetradellidae
Sigmobolbina sp. Henningsmoen 1953 ostracod
Tallinnella dimorpha Opik 1937 ostracod
 Palaeocopida - Tvaerenellidae
 Palaeocopida - Euprimitiidae
 Palaeocopida - Conchoprimitiidae
Conchoprimitia cf. tolli ostracod
"integra" subspecies
Trilobita
 Phacopida - Cheiruridae
Sphaerocoryphe sp. Angelin 1854 trilobite
 Proetida - Telephinidae
"Telephus sp." = Telephina
"Telephus sp." = Telephina Marek 1952 trilobite
 Asaphida - Asaphidae
Pseudasaphus sp. Schmidt 1901 trilobite
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite
 Trinucleida - Raphiophoridae
Lonchodomas rostratus Sars 1835 trilobite