Middle Jurassic (Bajocian) Eastern Oregon

48 MIDDLE JURASSIC (BAJOCIAN) AMMONITES FROM EASTERN OREGON
Loc. No.
(pl. 48)
Geological
Survey
Mesozoic
localities
Collector's
field
numbers
Collector, year of collection, description
of locality, and stratigraphic assignment
6L _________ 26760 I57-7-9C ____ R. W. Imlay, 1957. South side of South
Ammonite Hill, SW74 sec. 29, T. 18 S.,
R. 26 E., Grant County, Oreg. Upper
part of Weberg Member of Snowshoe
Formation.
6L _________ 26761 I57-7-9B ____ R. W. Imlay, 1957. Same deseription as
loeality 26760 exeept from upper third of
Weberg Member.
6L _________ 26765 I57-7-8C ____ R. W. Imlay, 1957. South Ammonite Hill
in SW74 sec. 29, T.18 S., R. 26 E., Delintment
Lake 15-min quad., Grant County,
Oreg. Upper part of Weberg Member of
Snowshoe Formation.
6L_ ---------------------- L306 ________ R. L. Lupher, 1927? Western slope of South
Ammonite Hill about 600 ft south of
county road and 50 ft west of a northtrending
fence. Probably SW74 sec. 29,
T. 18 S., R. 26 E., Delintment Lake
15-min quad., Grant County, Oreg.
From Ichthyosaur-bearing beds in middle
part of Weberg Member of Snowshoe
Formation.
62------------------------ VU _________ L. W. Vigrass, S. W. Muller, W. R. DiDh.
inson, and J. H. Beeson, 1956. Southeast
slope of South Ammonite Hill, SE74SW74
sec. 29, T. 18 S., R. 26 E., Grant County,
Oreg. Weberg Member of Snowshoe
Formation, about 100 ft above base.
63 ________________________ L316 ________ R. L. Lupher, 1926? From 600ft south of
Suplee-Izee road and 100ft west of Boundary
Spring road between North and
South Ammonite Hill. Probably in
NE74SW74 sec. 29, T. 18 S., R. 26 E.,
Delintment Lake 15-min quad., Grant
County, Oreg. Warm Springs Member of
Snowshoe Formation.
63 ________________________ VIO _________ L. W. Vigrass, W. R. Dickinson, S. W.
Muller, and J. H. Beeson, 1956. Saddle
between South Ammonite Hill and
pyramidal hill to south. NE74SW74SW74
see. 29, T. 18 S., R. 26 E., Delintment
Lake 15-min quad., Grant County,
Oreg. Warm Springs Member of Snowshoe
Formation.
63 ________________________ V401________ Same as loc. V10.
64. _________ 29401 ________ I66-7-27C ___ R. W. Imlay and W. 0. Ross, 1966. Roadcut
on eastern end of anticlinal hill south
of South Ammonite Hill in SW74SE74
sec. 29, T. 18 S., R. 26 E., Delintment
Lake 15-min quad., Grant County, Oreg.
Weberg Member of Showshoe Formation.
65 ________________________ V205 ________ L. W. Vigrass, S. W. Muller, W. R. Dickinson,
and J. H. Beeson, 1956. South slope
of pyramidal hill directly south of South
Ammonite Hill, SE74SW74 sec. 29, T.
18 S., R. 26 E., Grant County, Oreg.
Weberg Member of Snowshoe Formation,
100 ft below top and probably near
middle.
65.----------------------- V237 _ ------- Same data as for loc. V205, but only 50ft
below top of Weberg Member of Showshow
Formation.
66_ ----------------------- V168_ ------- L. W. Vigrass and others, 1956. Saddle
south of pyramidal hill directly south of
South Ammonite hill. NE74NE74NW74
sec. 32, T.18 S., R. 26 E., near line ofl'.ee.
29, Delintment Lake 15-min quad.,
Grant County, Oreg. Warm Springs
Member of Snowshoe Formation, near
base.
67---------- 2758L _____________________ R. W. Imlay, 1959. At site of former field
camp of the University of Oregon, west
of spring. SE. cor. sec. 2::1, T. 16 S., R.
26 E., Delintment Lake 15-min quad.,
Grant County, Oreg. Near base of
Weberg Member of Snowshoe Formation.
68 ________________________ L2l4_ _______ R. L. Lupher, 1928. On hillside 100ft east
of site of University of Oregon field camp,
SW74SW74 sec. 28, T. 18 S., R. 26 E.,
Delintment Lake 15-min quad., Grant
County, Oreg. Weberg Member of Snowshoe
Formation, probably lower part.
69 ________________________ D94 _________ W. R. Dickinson, S. W. Muller, L. W.
Vigrass, and J. H. Beeson, 1956. West side
of ridge southeast of Jim Robertson
Ranch house. NE74SW74SE74 sec. 28, T.
18 S., R. 26 E., Delintment Lake 15-min
qu!l;d., Grant County, Oreg. Warm
Sprmgs Member of Snowshoe Formation
near middle. '
70 ________________________ V3(=D88) __ L. W. Vigrass, S. W. Muller, W. R. Dickinson,
and J. H. Beeson, 1956. On west slope
of ridge east of Dobson Creek, near center
of SE74 see. 28, T. 18 S., R. 26 E., Grant
County, Oreg. Weberg Member of Snowshoe
Formation, 50 ft above base.
Loc. No.
(pl. 48)
Geologieal
Survey
Mesozoic
localities
Collector's
field
numbers
Collector, year of collection, description
of locality, and stratigraphic assignment
70. ________ ---- ____ ------- L103 _____ - __ R. L. Lupher, 1927? Southeast of Robertson
Ranch house in SE74 sec. 28, T. 18 S., R.
26 E., Delintment Lake 15-min quad.,
Grant County, Oreg. Locality claimed by
Lupher as in the Nicely Shale but the
presence of Docidoceras shows that the
locality must be in the Weberg Member of
the Snowshoe Formation.
70 ________________________ V86(=D88) .. L. W. Vigrass, S. W. Muller, W. R. Dickinson,
and J. H. Beeson, 1956. About 600ft
south of north end of ridge east of Dobson
Creek, near center of SE74 sec. 28, T. 18
S., R. 26 E., Grant County, Oreg. Weberg
Member of Snowshoe Formation, 80 ft.
above base.
7L _______________________ V87(D89) ____ L. W. Vigrass, S. W. Muller, W. R. Dickinson,
and J. H. Beeson, 1956. Float along
irrigation ditch 400 ft west of Freeman
Creek and 1300 ft south of Beaver Creek,
SW74SW74 sec. 27, T. 18 S., R. 26 E.,
Grant County, Oreg. Weberg Member of
Snowshoe Formation.
72 ________________________ L235 ________ R. L. Lupher, 1928. On road to Allison
guard station about 0.3 mile south of
junction of Freeman Creek with Beaver
Creek. SW74 sec. 27, T. 18 S., R. 26 E.,
Delintment Lake 15-min quad., Grant
County, Oreg. Warm Springs Member of
Snowshoe Formation.
73 __________ 29399 I66-7-28A ___ R. W. Imlay and W. 0. Ross, 1966. Just
above ditch on south side of field west of
Freeman Creek. SE74SW74SW74 sec. 27,
T. 18 S., R. 26 E., Delintment Lake 15·
min quad., Grant County, Oreg. Warm
Springs Member of Snowshoe Formation,
near top.
7 4 __________ 29239 __ - ____ I65-7-14A ___ R. W. Imlay and W. 0. Ross, 1965. On east
side of road up Freeman Creek about 0.4
mil.e south of junction with road along
Beaver Creek. South central part of SE3i
SW74 sec. 27, T. 18 S., R. 26 E., Delintment
Lake 15-min quad., Grant County,
Oreg. Warm Springs Member of Snow.
shoe Formation, near top of lower third.
75 ________________________ D100(56-77)_ W. R. Dickinson, S. W. Muller, L. W.
Vigrass, and J. H. Beeson, 1956. Roadcut
at sharp bend in road west of Freeman
Creek, SE74NW74 sec. 34, T. 18 S., R.
26 E., Delintment Lake 15-min quad.,
Grant County, Oreg. Basey Member of
Snowshoe Formation, near base.
76 ________________________ L108 ________ R. L. Lupher, 1927. From long strike ridge
adjoining southwest side of upper part of
Freeman Creek, probably southern half
of NE74 sec. 34, T. 18 S., R. 26 E., Delintment
Lake 15-min quad., Grant County,
Oreg. Near eastern pinchout of Weberg
Member of Snowshoe Formation.
77 _________________________ D95 _________ W. R. Dickinson, S. W. Muller, L. W
Vigrass, and J. H. Beeson, 1956. Float at
cellar entrance just west of road near
Harris Ranch house on west fork of
Freeman Creek. A couple hundred feet
north of loc. D96 in same quarter section.
Warm Springs Member of Snowshoe
Formation, at top.
78 _________________________ D96 _________ W. R. Dickinson and L. W. Vigrass, 195?·
Roadcut on bend in road at J. H. Harns
Ranch house on west fork of Freeman
Creek in NE74SW74 sec. 34, T. 18 S.,
R. 26 E., Delintment Lake 15-min quad.,
Grant County, Oreg. Probably same
spot as L109 and USGS Mesozoic loc.
29395. Warm SpringsMemberofSnowshoe
Formation, near top.
78 _________________________ L109 ________ R. L. Lupher, 1927. Roadcut 1.3 miles
south of junction of Freeman Creek with
Beaver Creek near forest boundary.
Probably near USGS Mesozoic loc. 29395
and Dickinson's loc. 96. NE74SW74 sec.
34, T. 18 S., R. 26 E., Delintment Lake
15-min quad., Grant County, Oreg.
Warm Springs Member of Snowshoe
Formation, near top.
78 __________ 29395 ________ I66-7-28B ___ R. W. Imlay and W. 0. Ross, 1966. Roadcut
on west side of road up west fork of
Freeman Creek about 100 ft southeast of
J. H. Harris Ranch house. Near center
NE74SW74 sec. 34, T. 18 S., R. 26 E.,
Delintment Lake 15-min quad., Grant
County, Oreg. Warm Springs Member of
Snowshoe Formation, near top.