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Re: Fossils B/C

Posted: April 8th, 2020, 8:54 am
by dchen22
BennyTheJett wrote:
April 8th, 2020, 8:51 am
Per twig from a few pages ago. He mentions more than just where they branch, and I think he does a good job explaining.
twig wrote:
February 24th, 2020, 6:49 pm
How many times do I have to answer this? (this is probably my 4-5th time answering the same question, so don't ask this again)
Look at the veins. Platanus has 3 main veins that branch into two separate veins, and Acer does not have these branching veins.
Another way to tell is by the flowers and also the shape of the leaf. It's just that simple.
Twig mostly mentioned the branching veins (which are not given in this specimen) and I can’t seem to distinguish between Acer and Platanus based on the shape of the leaves. Any other tips?

Re: Fossils B/C

Posted: April 8th, 2020, 8:58 am
by BennyTheJett
That particular specimen only has 3 points at the end of the leaf. I have never seen an acer with less than 5. It's definitely not surefire, but that's my last resort before guessing between the 2.

Re: Fossils B/C

Posted: April 8th, 2020, 9:02 am
by dchen22
BennyTheJett wrote:
April 8th, 2020, 8:58 am
That particular specimen only has 3 points at the end of the leaf. I have never seen an acer with less than 5. It's definitely not surefire, but that's my last resort before guessing between the 2.
I’ve seen Acer with three lobes but I’ve only ever seen Platanus with five lobes. I don’t think there’s a way to distinguish for that specimen.
https://assets2.fossilera.com/sp2/74724 ... cer-sp.jpg

Re: Fossils B/C

Posted: April 8th, 2020, 9:28 am
by BennyTheJett
Oof, yeah I'm clueless (fossils isn't a strong event of mine).

Re: Fossils B/C

Posted: April 8th, 2020, 2:31 pm
by pb5754
Shape is probably not a reliable way of distinguishing Acer and Platanus, but I don't really know how to distinguish them without the bottom portion of the leaf.

Re: Fossils B/C

Posted: April 12th, 2020, 3:03 pm
by dchen22
Have any of you seen non-leaf fossils of Populus on tests?

Re: Fossils B/C

Posted: May 1st, 2020, 8:55 pm
by BennyTheJett
No I haven't, dchen22. Sorry about the late reply I just saw this now.

Re: Fossils B/C

Posted: June 20th, 2020, 9:51 am
by Fyren
dchen22 wrote:
April 12th, 2020, 3:03 pm
Have any of you seen non-leaf fossils of Populus on tests?
Nope, sorry.