Dalby Formation. Bed 78.61-80.41 (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: Upper Member (Dalby Formation), Caradoc (458.4 - 449.5 Ma)

• Listed as Middle Caradoc

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; poorly lithified, gray, calcareous shale and lithified, gray, argillaceous limestone

• Environment listed as Deep Mid-shelf. Horizontal worm trails are common
• Dark gray, calcareous mudstone with gray, almost compact, argillaceous limestone interbeds

Size classes: macrofossils, mesofossils, microfossils

Preservation: trace

Collection methods: 7 cm diameter core sample, but with some vertical averaging; equivalent to Estonian age C3/D1 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 76906: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 07.12.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Asaphidae
Asaphus (Neoasaphus) sp. Jaanusson 1953 trilobite
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite
Ostracoda
 Palaeocopida - Euprimitiidae
 Palaeocopida - Aechminidae
"Parapyxion sp." = Vogdesella
"Parapyxion sp." = Vogdesella ostracod
 Palaeocopida - Primitiidae
Strophomenata
 Strophomenida - Strophomenidae
Strophomena sp. Rafinesque and De Blainville 1824
Pterobranchia
 Graptoloidea - Diplograptidae