metasequoia 170M years old?

[blackmoth]

found some pieces from an early mid-jurassic for late early-jurassic strata in Jiulongshan to the west of Beijing City, China. Pretty common.

some mentioned the term storguardia to me, though I could not find any information on-line.

I found that in all conifers, only metasequoia has this type of foliage （opporsite,  lanceolated leaves）.  is it true?

[Norki]

The fossil metasequoia leaves that I've found are a lot smaller than that (like 0.5cm long or so). Also, I'm pretty sure that it only originated in the Late Cretaceous.

I have very little knowledge about plant fossils though so take my words with a good grain of salt.

[caldigger]

@paleoflor

[paleoflor]

Perhaps the following paper can help: Zhang et al. (2012) https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1759-6831.2011.00165.x