Collection 69ICt 31. Trail Creek section (Silurian of the United States)

Also known as Phi Kappa Formation, Trail Creek section, collection 69ICt 31

Where: Idaho (43.9° N, 114.2° W: paleocoordinates 5.6° S, 67.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Monograptus convolutus graptolite zone, Phi Kappa Formation, Aeronian (440.8 - 438.5 Ma)

Environment/lithology: deep subtidal; shale

• siliceous shale

Size classes: macrofossils, mesofossils, microfossils

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 145514: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 04.06.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Climacograptidae
Climacograptus cf. scalaris
Climacograptus cf. scalaris Lapworth 1877 climacograptid
frequent specimens
 Graptoloidea - Retiolitidae
"Petalograptus minor" = Petalolithus
"Petalograptus minor" = Petalolithus graptolite
frequent specimens
 Graptoloidea - Monograptidae
Monograptus cf. argutus, Monograptus cf. decipiens, Monograptus cf. leptotheca, "Monograptus lobiferus" = Campograptus lobiferus, "Monograptus convolutus" = Lituigraptus convolutus
Monograptus cf. argutus graptolite
rare specimens
Monograptus cf. decipiens graptolite
frequent specimens
Monograptus cf. leptotheca graptolite
frequent specimens
"Monograptus lobiferus" = Campograptus lobiferus M'Coy 1850 graptolite
frequent specimens
"Monograptus convolutus" = Lituigraptus convolutus Hisinger 1837 graptolite
abundant specimens