Coronados Island, 4, Alaska (Devonian to of the United States)

Also known as Reef 3308

Where: Alaska (55.4° N, 133.1° W: paleocoordinates 19.6° S, 80.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Coronados Volcanics Formation, Eifelian to Eifelian (393.3 - 382.7 Ma)

• Indicated as Middle Devonian. Probably Givetian judging from strat. column.

• group of beds-level stratigraphic resolution

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

Size class: macrofossils

Collection methods: quarrying, peel or thin section,

Primary reference: I. I. Tchudinova, M. Churkin, Jr., and G. D. Eberlein. 1974. Devonian syringoporoid corals from southeastern Alaska. Journal of Paleontology 48(1):124-134 [W. Kiessling/W. Kiessling/W. Kiessling]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 36602: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 06.02.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Spiriferida - Ambocoeliidae
Emanuella sp. Grabau 1923
 Spiriferida - Reticulariidae
Warrenella sp.
 Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
 Rhynchonellida - Hypothyridinidae
Hypothyridina sp. Buckman 1906
 Favositida - Pachyporidae
Thamnopora sp. Steininger 1831 tabulate coral
 Favositida - Alveolitidae
Alveolites sp. Lamarck 1801 tabulate coral
 Heliolitida - Heliolitidae
Heliolites sp. Dana 1846 tabulate coral