Upper Grebes Nest Point, Bell Island (Ordovician of Canada)

Where: Newfoundland, Canada (47.6° N, 53.0° W: paleocoordinates 65.9° S, 35.6° W)

When: Grebes Nest Point Formation (Wabana Group), Arenig (478.6 - 466.0 Ma)

Environment/lithology: deltaic; lithified, muddy shale and lithified, silty siltstone

• Part of sequence representing a storm dominated deltaic system
• shale, siltstone, sandstone

Size class: macrofossils

Preservation: trace

Primary reference: D. Fillion and R. K. Pickerill. 1990. Ichnology of the Upper Cambrian? to Lower Ordovician Bell Island and Wabana groups of eastern Newfoundland, Canada. Palaeontographica Canadiana 7:1-119 [R. Plotnick/R. Plotnick]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 175923: authorized by Roy Plotnick, entered by Roy Plotnick on 19.01.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ichnofossils -
Monomorphichnus sp. Crimes 1970
Didymaulichnus lyelli Rouault 1850
Trichophycus venosus Miller 1879
Rosselia socialis Dahmer 1937
Rosselia chonoides Howard and Frey 1984
Catenichnus contentus McCarthy 1979
Arthraria antiquata Billings 1872
Trichichnus simplex Fillion and Pickerill 1990
Teichichnus flexuosus Schneider 1962
Phycodes wabanensis Fillion and Pickerill 1990
"Phycodes circinatus" = Phycodes circinatum Richter 1850
Palaeophycus sulcatus Miller and Dyer 1878
Rusophycus sp. Hall 1852
Rusophycus biloba Vanuxem 1842
Lockeia siliquaria James 1879
Cruziana stromnessi Trewin 1976
Skolithos sp. Haldemann 1840
Skolithos linearis Haldeman 1840