Loc. 64Ac, 752 (821), Salmontrout Limestone, Porcupine-Salmontrout Rivers Area (Dacryoconarida) (Devonian of the United States)

Where: Alaska (65.0° N, 141.0° W: paleocoordinates 2.4° N, 42.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Salmontrout Limestone Formation, Pragian (410.8 - 407.6 Ma)

• 600 ft. thick, Location 64 Ac, Sec. 752 (821)

Environment/lithology: offshore; argillaceous, silty limestone and limestone

• Deep water, low energy
• Massive, fragmented fossil limestone, thin interbeds of silty and argillaeous limestone, tentaculitoids found in bedding planes

Size class: macrofossils

Preservation: mold/impression, adpression, replaced with pyrite

Collected by Churkin and Carter; reposited in the USNM

Collection methods: chemical,

• etched out of limestone with Formic Acid

Primary reference: M. Churkin and C. Carter. 1970. Devonian tentaculitids of east-central Alaska; systematics and biostratigraphic significance. Journal of Paleontology 44(1):51-68 [A. Miller/J. Wittmer]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 79151: authorized by Arnold Miller, entered by Jacalyn Wittmer on 26.02.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Tentaculita
 Nowakiida - Nowakiidae
Nowakia acuaria
abundant
 Styliolinida - Styliolinidae
cf. Styliolina fissurella Hall 1879
abundant
Conodonta
  -