Pollen cone or young twig of Elatocladus

[blackmoth]

found  in the YP formation(early Mid-Jurrasic  or late Early-Juranssic )   of the west mountains in Beijing China. Other fossils commonly found

are Elatocladus (Machuria) , Baiera, Coniopteris, Czekanowskiales， Cladophlebis

what could it be?

the finest mark in 1mm

 

[paleoflor]

Indeed resembles a cone, I'd say. Did you collect this yourself?

[blackmoth]

On 2020/3/3 at 6:19 PM, paleoflor said:

Indeed resembles a cone, I'd say. Did you collect this yourself?

Yes, other guys  picked their  "cones"  as well,  but each looks different from one another.

[hndmarshall]

if you look at the long slender leaf impressions? around it I would conclude some type of grass type plant seed head?...just my observation.

 

[paleoflor]

7 hours ago, hndmarshall said:

if you look at the long slender leaf impressions? around it I would conclude some type of grass type plant seed head?...just my observation.

I can see what you mean, as the specimens indeed show some resemblance to the spike-type inflorescences of grasses. However, the Poaceae (grasses) did not evolve until the Cretaceous, so these Jurassic specimens would be a bit too old. Note a large variety of spore plants and gymnosperms produce(d) superficially similar-looking inflorescences. To get some overview of the many different types of gymnospermous reproductive structures, for example, the following book is a rather nice resource: https://ia800205.us.archive.org/4/items/briefhistoryofgy20ande/Strelitzia_20_2007.pdf