McBeth Point-Cat Head-Lynx Point, Lake Winnipeg (Ordovician of Canada)

Where: Manitoba, Canada (52.1° N, 97.5° W: paleocoordinates 10.6° S, 57.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Cat Head Member (Red River Formation), Maysvillian (450.2 - 449.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified dolomite and lithified chert

• cream-coloured finely crystalline dolomite, light grey dense chert

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: J. K. Rigby. 1971. Sponges of the Ordovician Cat Head Member, Lake Winnipeg, Manitoba. Geological Survey of Canada Bulletin 202:35-79 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120497: authorized by Wolfgang Kiessling, entered by Uta Merkel on 14.11.2011, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Demospongiae
 Lithistida - Anthaspidellidae
Patellispongia sp. Bassler 1927 demosponge
? Anthaspidella mammulata Ulrich and Everett 1890 demosponge
 Lithistida - Streptosolenidae
Hudsonospongia irregularis Raymond and Okulitch 1940 demosponge
Aulocopella winnipegensis Rauff 1895 demosponge
? Edriospongia basalis Ulrich and Everett 1889 demosponge
 Protomonaxonida - Sollasellidae
Trichospongiella hystrix n. gen. Whiteaves 1897 demosponge
Hexactinellida
 Reticulosa - Dictyospongiidae
Tiddalickia manitobensis n. sp.1 Rigby and Leith 1989 glass sponge
 Reticulosa - Hydnodictyidae
Hydnodictya acantha n. gen. n. sp.
Hydnodictya acantha n. gen. n. sp. Rigby 1971 glass sponge
 Reticulosa - Hintzespongiidae
Cyathophycus ? reticulatus Walcott 1879 glass sponge
 Lyssacinosa - Brachiospongiidae
Brachiospongia digitata Owen 1858 glass sponge
 Lyssacinosa - Pyruspongiidae
Pyruspongia ruga n. gen. n. sp., Pyruspongia camella n. sp.
Pyruspongia ruga n. gen. n. sp. Rigby 1971 glass sponge
Pyruspongia camella n. sp. Rigby 1971 glass sponge
Scyphozoa
 Conulariida - Conulariidae
Conularia aff. elegantula2 jellyfish
McBeth Point & west end of cliff just east of the point at Cat Head
Conularia porcella n. sp.2 Robson and Young 2013 jellyfish
Conularia ? splendida2 Billings 1866 jellyfish
Cat Head & McBeth Point
Metaconularia heymanni2 Foerste 1920 jellyfish
eastern side of McBeth Point