J-26 (Ordovician of the United States)

Also known as SF 549

Where: Millard County, Utah (38.9° N, 113.5° W: paleocoordinates 7.9° S, 81.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: M trilobite zone, Kanosh Shale Formation, Dapingian (470.0 - 467.3 Ma)

• Whiterockian; Kanoshian

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified limestone and lithified shale

• carbonate ramp, above storm wave base
• grey; bioturbated lightly to moderately (ii 1-3); shales grey to black, limestones show evidence of significant hydrodynamic sorting; GS ripples common

Size class: macrofossils

Preservation: replaced with silica

Collected by L.F. Hintze

Collection methods: bulk,

Primary reference: L.F. Hintze. 1951. Lower Ordovician detailed stratigraphic sections for western Utah. Utah Geological and Mineralogical Survey Bulletin 39:99 p. [A. Miller/A. Miller]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104218: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011, edited by Melanie Hopkins and Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
"cystid" indet.1
Trilobita
 Phacopida - Pliomeridae
"Pseudomera kanoshensis" = Kanoshia kanoshensis1, Pseudomera cf. barrandei1
"Pseudomera kanoshensis" = Kanoshia kanoshensis1 Hintze 1953 trilobite
Pseudomera cf. barrandei1 Billings 1865 trilobite
 Proetida - Bathyuridae
"Bathyurellus pogonopensis" = Bathyurellus pogonipensis1, Pseudoolenoides dilectus1, Eleutherocentrus sp.1
"Bathyurellus pogonopensis" = Bathyurellus pogonipensis1 Hintze 1953 trilobite
Pseudoolenoides dilectus1 Hintze 1953 trilobite
Eleutherocentrus sp.1 Clark 1935 trilobite
Gastropoda
  -
Gastropoda indet.1
Gastropoda indet.1 Cuvier 1795 snail
Maclurites cf. carinatus of Hintze 1951?
 Bellerophontida -
Bellerophontina indet.2
Bellerophontina indet.2 Ulrich and Scofield 1897 snail
steinkerns
Cephalopoda
 Endocerida - Endoceratidae
Endoceras sp.1
Endoceras sp.1 Hall 1847
Rhynchonellata
 Orthida - Anomalorthidae
Anomalorthis utahensis1
Anomalorthis utahensis1 Ulrich and Cooper 1936
 Orthida - Nanorthidae
"Orthambonites michaelis" = Shoshonorthis michaelis3
"Orthambonites michaelis" = Shoshonorthis michaelis3 Clark 1935
Lingulata
 Lingulida - Lingulidae
Lingula sp.1
Lingula sp.1 Bruguiére 1797
1Hintze 1953; 2Wagner 2023; 3Westermann and Riccardi 1982