Foraminifera from Tropic Shale (Lower Cretaceous), Tropic Utah

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geo_man
Posts: 117
Joined: Mon Jan 21, 2019 4:54 pm

Foraminifera from Tropic Shale (Lower Cretaceous), Tropic Utah

#1 Post by geo_man » Mon Jul 08, 2019 6:30 pm

My friend brought over a sample that we cleaned and this is one of the forams we found. Top image shows aperture (mouth area) and second image is of opposite side. Stacked images with my SZ7 w/2x AUX lens.
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2019-07-08 13-35-05 (B,Radius8,Smoothing4) (2).jpg
2019-07-08 13-35-05 (B,Radius8,Smoothing4) (2).jpg (476.25 KiB) Viewed 989 times
2019-07-08 13-49-42 (B,Radius8,Smoothing4) (1).jpg
2019-07-08 13-49-42 (B,Radius8,Smoothing4) (1).jpg (502.39 KiB) Viewed 999 times

jb89
Posts: 52
Joined: Fri Jun 21, 2019 9:09 am
Location: Denver, Co

Re: Foraminifera from Tropic Shale (Lower Cretaceous), Tropic Utah

#2 Post by jb89 » Mon Jul 08, 2019 8:40 pm

Very cool!

Are these forams considered index fossils for the early cretaceous?

I don't know much about fossils but I do have some samples you might be interested in, I will try to get pictures soon!

geo_man
Posts: 117
Joined: Mon Jan 21, 2019 4:54 pm

Re: Foraminifera from Tropic Shale (Lower Cretaceous), Tropic Utah

#3 Post by geo_man » Tue Jul 09, 2019 5:28 pm

Thanks jb89, this foram lived for tens off millions of years, per my paleontologist friend, so not a great index fossil, but still definitive for the early cretaceous and interesting morphology. I look forward to you posting some foram pics!

billbillt
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Joined: Mon Nov 10, 2014 10:01 pm

Re: Foraminifera from Tropic Shale (Lower Cretaceous), Tropic Utah

#4 Post by billbillt » Wed Jul 10, 2019 6:04 pm

Wonderful pics!.. thanks for sharing

Billt

geo_man
Posts: 117
Joined: Mon Jan 21, 2019 4:54 pm

Re: Foraminifera from Tropic Shale (Lower Cretaceous), Tropic Utah

#5 Post by geo_man » Sun Jul 14, 2019 12:16 am

Thanks Billt. It was interesting to take the somewhat friable shale sample, break it up, boil it in water with a dash of dish soap, dry it and then pick out these tiny 100 million year old fossils!

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