1393 ft, Jackfish River Section, Mackenzie Mountains (Carboniferous of Canada)

Where: Northwest Territories, Canada (61.1° N, 124.0° W: paleocoordinates 5.9° N, 37.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Besa River Formation, Kinderhookian (358.9 - 352.0 Ma)

• This unit is 470 feet thick. The bed label is given as feet from the base of the section to the base of the unit containing this collection. PJW: Given Macrostrat, this is now the Besa River Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, gray limestone and lithified, gray, calcareous shale

• "Limestone, dark gray, interbedded with dark gray calcareous shales. Limestone beds a few inches to 10 feet thick, nodular and irregular. Crinoid columnals common."

Size classes: macrofossils, mesofossils

Preservation: cast

Primary reference: W. J. H. Patton. 1958. Mississippian succession in South Nahanni River area, Northwest Territories. Jurassic and Carboniferous of Western Canada 309-326 [N. Heim/N. Heim/N. Heim]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 62431: authorized by Noel Heim, entered by Noel Heim on 19.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Proetida - Phillipsiidae
"Proetus loganensis" = Perexigupyge loganensis
"Proetus loganensis" = Perexigupyge loganensis Hall and Whitfield 1868 trilobite
Bivalvia
 Cardiidia - Grammysiidae
Grammysia sp.
Grammysia sp. de Verneuil 1847 clam
Rhynchonellata
 Athyridida - Athyrididae
Cleiothyridina lata, Cleiothyridina obmaxima
Cleiothyridina obmaxima McChesney 1861
 Spiriferinida - Syringothyrididae
Pseudosyrinx sp.
 Spiriferinida - Punctospiriferidae
Punctospirifer solidirostris
 Spiriferida - Spinocyrtiidae
Platyrachella rutherfordi
 Spiriferida - Spiriferidae
"Spirifer grimesi" = Mesochorispira grimesi, Spirifer sp., Spirifer cf. marionensis, Spirifer striatiformis, Spirifer rowleyi, Spirifer cascadensis, Spirifer centronatus
"Spirifer grimesi" = Mesochorispira grimesi Hall 1858
Spirifer sp. Sowerby 1818
Spirifer cascadensis Warren 1927
Spirifer centronatus Shimer 1926
S. centronatus minnewankensis
 Spiriferida - Brachythyrididae
Brachythyris cf. chouteauensis
 Spiriferida - Elythidae
Torynifer cooperensis
 Orthida - Rhipidomellidae
Rhipidomella missouriensis
 Orthida - Schizophoriidae
Schizophoria sp.
Schizophoria sp. King 1850
Schizophoria sp. undet.
 Rhynchonellida - Camarotoechiidae
Camarotoechia allani
Strophomenata
 Productida - Productidae
Dictyoclostus cf. arcuatus
 Productida - Productellidae
Marginirugus sp.
Marginirugus sp. Sutton 1938
 Orthotetida - Pulsiidae
? Schellwienella sp.
 Orthotetida - Schuchertellidae
? Schuchertella sp.
 Strophomenida - Chonetidae
Chonetes illinoisensis
Stenolaemata
 Cryptostomata - Fenestellidae
Fenestrellina sp.
Fenestrellina sp. d'Orbigny 1849
 Cystoporida - Sulcoreteporidae
Sulcoretepora sp.
 Rhabdomesida - Rhomboporidae
Rhombopora sp.
Rhombopora sp. Meek 1872
Anthozoa
 Auloporida - Syringoporidae
Syringopora cf. surcularia
Syringopora cf. surcularia Girty 1899 tabulate coral
 Stauriida - Bothrophyllidae
Caninophyllum sp.
Caninophyllum sp. Lewis 1929 horn coral
 Stauriida - Cyathopsidae
Caninia sp.
Caninia sp. Michelin 1840 horn coral
 Stauriida - Hapsiphyllidae
Neozaphrentis sp.
Neozaphrentis sp. Grove 1935 horn coral
 Stauriida - Lithostrotionidae
Diphyphyllum sp.
Diphyphyllum sp. Lonsdale 1845 horn coral