Phi Kappa Formation, Little Fall Creek section, sample 62ICn 491 (Ordovician to of the United States)

Where: Idaho (43.8° N, 114.2° W: paleocoordinates 5.9° S, 76.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Isograptus graptolite zone, Phi Kappa Formation, Castlemainian to Castlemainian (472.0 - 466.0 Ma)

Environment/lithology: deep subtidal; shale

Size classes: 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 145326: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 31.05.2013, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Isograptidae
"Isograptus imitatus" = Isograptus caduceus imitatus, "Isograptus maximodivergens" = Isograptus victoriae maximodivergens
"Isograptus imitatus" = Isograptus caduceus imitatus Harris 1933 graptolite
spp. imitatus; frequent
"Isograptus maximodivergens" = Isograptus victoriae maximodivergens Harris 1933 graptolite
spp. maximodiuergens; rare
 Graptoloidea - Glossograptidae
Pseudisograptus dumosus graptolite
frequent
 Graptoloidea - Dichograptidae
Didymograptus sp. McCoy 1851 graptolite
frequent
Didymograptus extensus Hall 1858 graptolite
common
Maeandrograptus tau graptolite
rare
 Graptoloidea - Phyllograptidae
Tetragraptus sp. Salter 1863 graptolite
rare
Tetragraptus aff. quadribrachiatus Hall 1858 graptolite
rare
Tetragraptus amii Elles and Wood 1902 graptolite
rare
Phyllograptus anna Hall 1865 graptolite
spp. prolatus; rare