GGU Collection 225563, Gustav Holm Dal (Cambrian of Greenland)

Also known as In front of Hans Tavsen Iskappe

Where: Peary Land, Greenland (82.4° N, 39.8° W: paleocoordinates 18.4° S, 45.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cedaria trilobite zone, Holm Dal Formation (Tavsens Iskappe Group), Marjumian (504.5 - 497.0 Ma)

• lowest part of formation

• bed-level stratigraphic resolution

Environment/lithology: argillaceous mudstone

• Thin-bedded, argillaceous lime mudstones

Size class: macrofossils

Collection methods: GGU

Primary reference: J. S. Peel. 1988. Molluscs of the Holm Dal Formation (late Middle Cambrian), central North Greenland. Meddelelser om Grønland, Geosciences 20(11):145-168 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49450: authorized by Pete Wagner, entered by Pete Wagner on 16.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Helcionelloida
 Helcionellida - Rugaeconidae
"Latouchella holmdalense" = Dorispira holmdalense
"Latouchella holmdalense" = Dorispira holmdalense Peel 1988
Stenothecoida
 Cambridioida - Cambridiidae
Trilobita
 Olenida - Olenidae
 Olenida - Cedariidae
 Ptychopariida - Catillicephalidae
 Ptychopariida - Alokistocaridae
Elrathia omega trilobite
 Ptychopariida - Menomoniidae
 Ptychopariida - Marjumiidae
Modocia planata trilobite
 Ptychopariida - Ptychopariidae
Conopolus granulus Robison 1968 trilobite
 Ptychopariida - Kingstoniidae
Kingstonia peltata Palmer and in Palmer and Peel 1981 trilobite
Ankoura sp. Resser 1938 trilobite
Artiopoda
 Agnostida - Peronopsidae
 Agnostida - Ammagnostidae
Proagnostus bulbus Butts 1926
 Agnostida - Agnostidae
Kormagnostus seclusus Walcott 1884