Upper part of the Phi Kappa Formation, Trail Creek section, collection 69ICt 62 (Ordovician of the United States)

Where: Idaho (43.9° N, 114.2° W: paleocoordinates 6.0° S, 71.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Climacograptus tubuliferus graptolite zone, Phi Kappa Formation, Eastonian (452.7 - 449.5 Ma)

Environment/lithology: deep subtidal; shale

• collections from 82 ft (25 m) of shale in the Trail Creek section

Size classes: macrofossils, mesofossils

Primary reference: C. Carter and M. Churkin. 1977. Ordovician and Silurian graptolite succession in the Trail Creek area, central Idaho-a graptolite zone reference section. Geological Survey Professional Paper [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 145481: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 03.06.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Graptoloidea - Diplograptidae
Orthograptus calcaratus, "Orthograptus amplexicaulis" = Rectograptus amplexicaulis
Orthograptus calcaratus graptolite
frequent specimens
"Orthograptus amplexicaulis" = Rectograptus amplexicaulis Hall 1847 graptolite
frequent specimens
 Graptoloidea - Lasiograptidae
Arachniograptus ? sp. Ross and Berry 1963 lasiograptid
rare specimens
 Graptoloidea - Climacograptidae
"Climacograptus tubuliferus" = Styracograptus tubuliferus Lapworth 1876 climacograptid
rare specimens
Climacograptus cf. mohawkensis climacograptid
rare specimens