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Reference
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| Title: |
Report on Referred Fossils
,
1973
(12/03)
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Harlan Bergquist gave me 37 slides with ostracodes he found in studying the foraminifera from the measured section of the Shublik Formation on Fire Creek, NE Alaska, 69 deg. 32 min. N., 145 deg. 12 min. W., Mt. Michelson quadrangle. I am particularly happy to have these ostacodes because I had previous collection from the upper part of the Shublik Formation on Dodo Creek (Sohn, 1965, Significance of the Triassic ostracodes from Alaska and Nevada: USGS Prof. Paper 501-D, p. D40-D42). In that paper had listed the following forms: HUNGARELLA sp. or spp., PARACYPRIS? sp., and DARWINULA? sp. and steinkerns undet. The collections from Fire Creek contain HUNGARELLA sp. or spp., BAIRDIA sp. (one carapace), and steinkerns of undetermined genera. These collections are important because of the presence of single valves of HUNGARELLA that show the hinge structure, and of some steinkerns of the same genus that show the muscle-scar pattern. Both of these features may help unravel the OGMOCONCHA-HUNGARELLA problem, a recent discussion of which is in Lord, 1971, The ostracod genera OGMOCONCHA and PROCYTHERIDEA in the Lower Jurassic: Geol. Soc. Denmark, Bull. 21, p. 319-336). I would like to prepare a note on this subject, and will appreciate more geologic and geographic data than give above. Do you have any additional material of the collections? The ostracodes on the slides are few, mostly poorly preserved, and probably do not represent the entire ostracode assemblage in these rocks. |
| Report by: |
I. G. Sohn
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| Referred by: |
Robert L. Detterman
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| | Age: | Late Triassic |
| Formation: | Shublik Formation |
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