Paleonet: Jurassic samaras (helicopter seeds)

[Andy Simpson]

I do not believe that we can assign the seed to *Pinus*. The venation of
the wing in *Pinus* is wavy, but in this seed, it is difficult to tell. I
think we can tentatively assign the seed to Pinaceae, but am extremely
apprehensive about assigning it to any living genus.

On Tue, May 25, 2021 at 3:06 AM Yazbeck, Thomas <yazbeckt at msu.edu> wrote:

> What's the presumed phylogenetic position for the specimen in question? Is
> it a 'stem pine' or something with affinities to crown taxa?
>
>
> Thomas Yazbeck
>
> ------------------------------
> *From:* Paleonet <paleonet-bounces+yazbeckt=msu.edu at paleonet.org> on
> behalf of Steve Mcloughlin <Steve.Mcloughlin at nrm.se>
> *Sent:* Monday, May 24, 2021 3:55 AM
> *To:* PaleoNet <paleonet at paleonet.org>
> *Subject:* Re: Paleonet: Jurassic samaras (helicopter seeds)
>
>
> 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
> <https://urldefense.com/v3/__https://doi.org/10.1016/j.palaeo.2017.12.036__;!!HXCxUKc!mZiF0Bmx56EXRNBKL7BcRR-vYorgEf6Qbj-9FUJeGGPC_nTSdI2AACGQ18d6CB2V$>
>
>
>
> 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
>
> _______________________________________________
> Paleonet mailing list
> Paleonet at paleonet.org
> http://lists.paleonet.org/mailman/listinfo/paleonet



-- 
Andy Simpson, Ph.D.
Research collaborator, Smithsonian Institution
Editor, Paleobotanical Section, BSA
Macroecology - comparative phylogenetics - paleobotany
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.paleonet.org/pipermail/paleonet/attachments/20210525/d138209d/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 497399 bytes
Desc: not available
URL: <https://lists.paleonet.org/pipermail/paleonet/attachments/20210525/d138209d/attachment.jpg>