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Picture is small, and blurry.  :( 
I can't make out much of anything, I'm afraid.

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    Tim    -  VETERAN SHALE SPLITTER

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Until you show us a better photo we can neither agree nor disagree. I don't think that Lygodium ranged as far back as the Morrison Formation.

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Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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Hi Ludwigia. Sorry photomicrograph isn't clearer.  However if you look at University College of London microfossils site, they show a lygodium spore from middle Jurassic.  I have found a number of these spores in the rock as well.  kr, rex

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24 minutes ago, REH said:

Hi Ludwigia. Sorry photomicrograph isn't clearer.  However if you look at University College of London microfossils site, they show a lygodium spore from middle Jurassic.  I have found a number of these spores in the rock as well.  kr, rex

Can you please give me a link. I can't find it.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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ucl.ac.uk/ miracle

Pic from site below and pic of spore I found.  Lygodium spores are triangular (but with an elongated lip on one tip), moderately bumpy, purple and have what appears to be a stem rising from the face (unusual).  They can vary in size from 50 to 130 um.  

IMG_20240513_142517.jpg

IMG_20240513_141342_01.jpg

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Today I found what I believe is lygodium vine with leaf bits still attached.  It is 22 mm long by about 30 um diameter.  Pics are a 2 mm section w leaf bits and the tip. Plus extant Lygodium.

IMG_20240513_211716.jpg

IMG_20240513_220044.jpg

IMG_20240513_220507.jpg

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I fear it's going to be difficult to be able to find absolute confirmation of your assumptions here, since this is an extremely specialized niche. I'd be surprised if any of the members here could confirm this for you. I think you'd probably be better off going directly to the specialists with your requests. Have you contacted the UCL about your finds? Please don't get me wrong though. I'm not trying to chase you away.

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Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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Lydwigia.  No problem.  This helped me focus.  I knew I'd seen synangia like that bfor & was hoping a Paleobotanist or someone on the forum would recognize.  When that wasn't happening, I began an Internet search.  Once I saw lygodium was a match, I knew I was on right track cause I'd found spores before.  Then yesterday, I found long, very thin stem.  Clearly wasn't a pine needle & I was thinking a Czekanowskiales (I already found ovule cupolas).  But when I saw lygod leaf bits still attached, it made very good sense that it was lygodium vine.  Post catalyzed me to put it all together.  This morning I found a lygodium leptosporangia (annulus position is quite distinctive).  KR rex

IMG_20240514_143648.jpg

IMG_20240511_201923.jpg

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Your pictures are so pixelated that all I see is colored dots. Can not make any reasonable guess.

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