Port Refugio 3 (Devonian of the United States)

Where: Prince of Wales County, Alaska (55.3° N, 133.3° W: paleocoordinates 13.4° S, 79.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Port Refugio Formation, Famennian (372.2 - 358.9 Ma)

• mid to late Famennian

Environment/lithology: marine; siliciclastic sediments and gray, silty limestone

• Ref. 10952: 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.
• Ref. 10953: "The P.R. Fmn [is] a sequence of interbedded greywacke, conglomerate, siltstone, shale and minor limestone. The sequence is rich in volcanic detritus and has numerous pillow basalt flows, tuffs, and volcanic breccias...The brachiopods...occur in a silty limestone about 15m thick that, in some localities...is clearly overlain by calcareous tuff, pillow basalt and basaltic breccia. The thinly bedded slabby limestone is medium gray to medium dark gray where fresh and weathers to a light olive gray."

Collection methods: Specimen counts given by Savage et al. in table 1.

Primary reference: N. M. Savage, G. D. Eberlein, and M. Churkin, Jr. 1978. Upper Devonian brachiopods from the Port Refugio Formation, Suemez Island, southeastern Alaska. Journal of Paleontology 52(2):370-393 [M. Foote/M. Foote/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 40584: authorized by Michael Foote, entered by Michael Foote on 25.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Athyridida - Athyrididae
 Spiriferida - Cyrtospiriferidae
 Spiriferida - Mucrospiriferidae
 Rhynchonellida - Leiorhynchidae
 Rhynchonellida - Pugnacidae
Chapinella bucareliensis n. gen. n. sp.
Chapinella bucareliensis n. gen. n. sp.