Paleonet: Jurassic samaras (helicopter seeds)

[Andy Simpson]

The fossil example could well be Pinaceae, although the venation in the
wing isn't as clear as I would like. The modern "example" in the photo is
*not* Pinaceae, however; it looks much more like *Acer*.

On Mon, May 24, 2021 at 5:33 AM Steve Mcloughlin <Steve.Mcloughlin at nrm.se>
wrote:

> These are Pinaceae (conifer) winged seeds. They are rather common in the
> Daohugou (Jurassic) and Jehol (Early Cretaceous) biotas of China. You can
> find many illustrated examples of these, and more elaborate forms, in:
>
> Sun Ge, Zheng Shaolin, DL Dilcher, Wang Yongdong, Mei Shengwu 2001 Early
> Angiosperms and their Associated Plants from Western Liaoning, China.
> Shanghai Scientific and Technological Education Publishing House, Shanghai.
>
> … and some additional commentary on them in:
>
> McLoughlin, S. & Pott, C. 2019. Plant mobility in the Mesozoic:
> disseminule dispersal strategies of Chinese and Australian Middle Jurassic
> to Early Cretaceous plants. *Palaeogeography, Palaeoecology,
> Palaeogeography 515*, 47–69. https://doi.org/10.1016/j.palaeo.2017.12.036
>
>
>
> Steve
>
> *From:* Paleonet <paleonet-bounces+steve.mcloughlin=nrm.se at paleonet.org> *On
> Behalf Of *Yazbeck, Thomas
> *Sent:* den 23 maj 2021 05:20
> *To:* paleonet at paleonet.org
> *Subject:* Paleonet: Jurassic samaras (helicopter seeds)
>
>
>
> Hello Paleonet,
>
>
> I need help searching for answers on a real head-scratcher. I saw a social
> media post saying that the fossil in the photo was a Jurassic example of a
> "helicopter seed", aka a samara, from the Tiaojishan Formation. A modern
> example is presented for scale and comparison. I can't find anything online
> about this, although I found an older publication describing samara-like
> seeds from Siberian Jurassic gnetophytes. Can anyone point me towards an
> answer on what type of plant this might pertain to?
>
>
>
> Thomas Yazbeck
>
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-- 
Andy Simpson, Ph.D.
Research collaborator, Smithsonian Institution
Editor, Paleobotanical Section, BSA
Macroecology - comparative phylogenetics - paleobotany
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