Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Silurian and ?Devonian
Kinds of fossils: Corals
Quadrangle or area: [Juneau] Adams Inlet area
Shipment No.: A-59-9
Referred by: Lathram, E. H.
Report prepared by: Oliver, William A., Jr.
Date: 08/18/1959

The following is a report on the corals in the submitted collections. Brachiopods, which may provide additional age date will be separately reported on at a later date.

Age determinations may be summarized as follows:

Coll. 33 & 53AMr387 [note by R.B. Blodgett, this should be 58AMr387] - Silurian or Devonian
Coll. 58APy183 - Post-Devonian Paleozoic; will be reported on by Helen Duncan
Coll. 58ACo271 - Silurian
Coll. 58ACo272 - Silurian, Lower Devonian or Middle Devonian
Coll. 58ACo274 - Silurian, probably Lower or Middle Silurian
Coll. 58ACo291 - Silurian


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Brief statement of problem and remarks (from collector):
Paleozoic fossils from limestone sections - considered either Silurian or Devonian.
User Note module to be added
58AMr387 , Juneau , Transmittal sheet of E.H. Lathram, dated May 1, 1959, gives following locality description: Gray limestone with indefinite bedding. Juneau D-6 Coords (1.8, 8.6) [Dutro's E&R report, 11/7/60 states {Boxes received were also labeled 53AMr387 and 33AMr387. Are they all the same collection? - comment by R.B. Blodgett, this is an obvious mistake in labelling samples, all are from 58AMr387]
Alveolites sp. (branching)
Alveolites sp. (encrusting)
Alveolites sp. (massive or encrusting)
Aulocystis? sp.
favositoid coral
Syringopora sp.
Disphyllum? sp.
horn corals indet., possibly Tryplasma sp.
horn coral indet.
stromatoporoids indet.
58ACo271 , Juneau , Transmittal sheet of E.H. Lathram, dated May 1, 1959, provides following: "Dark gray limestone with brown-weathering siliceous impurities contains poorly preserved brachiopods (Rhynchonellids?), crinoid stems, small horn corals, large bell-shaped colonial corals, small chain corals (Halysites?) Silurian or Devonian. Juneau D-5 Coords (1.2, 7.4)"
Favosites sp. 1
Halysites sp.
Heliolites sp. 1
58ACo272 , Juneau , Transmittal sheet of E.H. Lathram, dated May 1, 1959, provides following: "Green siltstone (locally reddish) with calcareous nodular portions. Overlain by massive limestone underlain by siliceous and nodular limestones interbedded Silurian or Devonian. Juneau D-5 Coords (1.3, 7.6)
Favosites sp. 5
Heliolites sp. 2
crinoid columnals
58ACo274 , Juneau , Transmittal sheet of Lathram, dated May 1, 1959, provides following description: Light gray limstone (locally gray and pink mottled) contains large colonial corals, crinoid stems, and horn corals, some stromatoporoid(?). Silurian or Devonian and amongst the youngest strata of young Mtn. Juneau D-5 Coords (1.7, 7.3)
Alveolites sp. (encrusting)
Favosites sp. 4
favositoid coral
Heliolites sp.
Arachnophyllum sp.
cyathophylloid coral
crinoid columnals
58ACo291 , Juneau , Transmittal sheet of E.H. Lathram, dated May 1, 1959, provides following: "Highly fossiliferous gray limestone with thin siliceous greenish limey nodular beds near base of Silurian or Devonian limestone section which to north contains Pycreodesma-type impurities and fossils weather brown in relief. Includes high-spiralled brachiopod, Halysites, horn-corals. Juneau D-5 Coords (3.4, 5.8)"
Alveolites sp. (massive or encrusting)
auloporoid coral
Favosites sp. 3
Favosites sp. 6
favositoid coral
Halysites sp.
Amplexoides sp.
cyathophylloid horn coral