USGS 2689 - northeast end of Heceta Island (Devonian of the United States)

Also known as 03RB16; 47-AH-R120(F)

Where: Prince of Wales County, Alaska (55.8° N, 133.3° W: paleocoordinates 15.6° S, 84.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Eognathodus sulcatus sulcatus conodont zone, Karheen Formation, Pragian (410.8 - 407.6 Ma)

• Savage (1977) found conodonts.

•Has been put in Karheen formation, but that should be restricted to the Late Silurian; Blodget et al (2010) note that it is very similar to Soda Creek.

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; silty limestone

• Allocthonous deposits. General geological setting interpreted as island arc, in which shelly fossiliferous units represent carbonate banks and reefs. In some places these are associated with plant-bearing or graptolite-bearing shales.
• limestone, shaly limestone and shale.

Size class: macrofossils

Collected by Eberlein in 1947; reposited in the USGS, USNM

Primary reference: E. Kirk and T. W. Amsden. 1952. Upper Silurian brachiopods from southeastern Alaska. United States Geological Survey Professional Paper 233-C:53-55 [A. Miller/S. Kolbe]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 109022: authorized by Arnold Miller, entered by Sarah Kolbe on 10.05.2011, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Spiriferida - Reticulariidae
 Spiriferida - Cyrtiidae
Eospirifer sp. Schuchert 1913
 Athyridida - Athyrididae
 Athyridida - Nucleospiridae
Nucleospira hecetensis Kirk and Amsden 1952
 Spiriferinida - Cyrtinidae
Cyrtina sp.5 Davidson 1858
 Orthida - Schizophoriidae
 Orthida - Dalmanellidae
Isorthis sp. Kozlowski 1929
Howellites amsdeni n. sp.5 Savage 1981
 Rhynchonellida - Trigonirhynchiidae
Savagerhynchus hecetaensis n. gen. n. sp.1 Baranov and Blodgett 2015
Savagerhynchus hecetaensis1 Baranov and Blodgett 2015
"Camarotoechia reesidei" = Kirkirhynchus reesidei Kirk and Amsden 1952
 Rhynchonellida - Innaechiidae
Dubovikovia cf. kuzmini1 Cherkesova 1968
 Pentamerida - Gypidulidae
 Atrypida - Atrypidae
Rugosatrypa flexibilis1 Modzalevskaya and Cherkesova 1994
 Atrypida - Septatrypidae
Atrypella scheii Holtedahl 1914
Strophomenata
 Orthotetida - Areostrophiidae
 Strophomenida - Amphistrophiidae
Harperoides alaskensis2 Baranov and Blodgett 2016
Conodonta
 Ozarkodinida -
Ozarkodina eberleini n. sp.4 Savage 1977 conodont
 Ozarkodinida - Polygnathidae
Pandorinellina exigua4 conodont
Pandorinellina exigua philipi
 Ozarkodinida -
Eognathodus sulcatus4 Philip 1965 conodont
Eognathodus sulcatus sulcatus
 Prioniodontida - Icriodontidae
Anthozoa
 Stauriida - Lykophyllidae