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Insect non det.

oilshale
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Insect non det.

Middle Jurassic

Daohugou

Nei Mongol

China


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On ‎16‎.‎03‎.‎2017 at 10:50 PM, sdsnl said:

Looks like a stonefly, Sinotaeniopteryx sp.

Thanks Sdsnl for the hint with the stonefly - helped a lot. I've checked the literature and found more than ten almost identical looking species (at least to my eyes) described from this location.

But I think I could nail it down to Pronemoura shii Liu, Sinitshenkova, Ren & Shih, 2011.

Pronemouridae fam. nov. (Insecta: Plecoptera), the stem group of Nemouridae and Notonemouridae, from the Middle Jurassic of Inner Mongolia, China

 

On ‎17‎.‎03‎.‎2017 at 8:01 AM, Ash said:

Are those conchostrachans? (spelling..) also? Theyre in a few insect locales.

 

Ash, these Jurassic beds near Daohugou are full of conchostraca or clam shrimps. Even clam shrimps with eggs have been found there, but to determine to what family they belong is something for absolute specialists only (and far beyond my knowledge).

Extant Clam Shrimp Egg Morphology: Taxonomy and Comparison with Other Fossil Branchiopod Eggs

Jurassic clam shrimp (“conchostracan”) faunas in China

 

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8 hours ago, oilshale said:

Thanks Sdsnl for the hint with the stonefly - helped a lot. I've checked the literature and found more than ten almost identical looking species (at least to my eyes) described from this location.

But I think I could nail it down to Promenoura shii Liu, Sinitshenkova, Ren & Shih, 2011.

Pronemouridae fam. nov. (Insecta: Plecoptera), the stem group of Nemouridae and Notonemouridae, from the Middle Jurassic of Inner Mongolia, China

 

What is the difference between Promenoura and Sinotaeniopteryx?

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On ‎17‎.‎03‎.‎2017 at 6:45 PM, sdsnl said:

What is the difference between Pronemoura and Sinotaeniopteryx?

Pronemoura is from the Middle Jurassic of Daohugou - Sinotaeniopteryx is from the Lower Cretaceous of Beipiao.

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Just now, oilshale said:

Promenoura is from the Middle Jurassic of Daohugou - Sinotaeniopteryx is from the Lower Cretaceous of Beipiao.

Ah I see, thanks!

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On ‎17‎.‎03‎.‎2017 at 6:29 PM, sdsnl said:

Great info, might you have access to the full text of this paper? I have a clam shrimp with some white balls, been assuming they are coprolites, but would love to check if they are eggs.

Not the one I mentioned, but same topic: https://www.researchgate.net/publication/283909518_Exceptional_preservation_of_clam_shrimp_Branchiopoda_Eucrustacea_eggs_from_the_Early_Cretaceous_Jehol_Biota_and_implications_for_paleoecology_and_taphonomy

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