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 (452.0 - 449.5 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

Demospongea
 Protomonaxonida - Sollasellidae
Trichospongiella hystrix n. gen. Whiteaves 1897 demosponge
 Lithistida - Streptosolenidae
? Edriospongia basalis Ulrich and Everett 1889 demosponge
Hudsonospongia irregularis Raymond and Okulitch 1940 demosponge
 Lithistida - Anthaspidellidae
? Anthaspidella mammulata Ulrich and Everett 1890 demosponge
Aulocopella winnipegensis Rauff 1895 demosponge
Patellispongia sp. Bassler 1927 demosponge
Hexactinellida
 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
 Lyssacinosa - Brachiospongiidae
Brachiospongia digitata Owen 1858 glass sponge
 Reticulosa - Hintzespongiidae
Cyathophycus ? reticulatus Walcott 1879 glass sponge
 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
Scyphozoa
  -
Metaconularia heymanni2 Foerste 1920 jellyfish
eastern side of McBeth Point
 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