Re: [dinosaur] Stegosaur shoulder spines

To: Poekilopleuron <dinosaurtom2015@seznam.cz>, dinosaur-l@usc.edu

Subject: Re: [dinosaur] Stegosaur shoulder spines

From: Tyler Greenfield <tgreenfield999@gmail.com>

Date: Sun, 12 Jan 2020 16:09:15 -0600

Delivered-to: dinosaur-l@mymaillists.usc.edu

Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=OYkP9mcNyvTwoT8QCm7MLgeoteeBPDR5EPyS4oGRlIA=; b=kCiswc/hVJufyZGpyLLyACwlYt9Y/qsE74LbYMyd3R/65T0phstYgj1Uwx6IEr4nb1 P60lLcPhDuXWHBfztGthe3L5nR5S16XLDXQyonpabkzpMiG6VLVa2eQOl0x2GOikBZlW MdYwolxzgAbV4/CnkgXFy7y/+eJsxVCGfTvZKGTeBBXv2AuX/tu277uGM2n6YsZkLa+p nUs7fJjeDsu+zl6sRuXzG0mk8j8M2pC0nRVWBKKMxkvSSFJFdfZooU8kJdU3rTMMCe+k vZJ+Cl6mXi7nMWVGf+k5HAly8ZtyBQXKqy60bmWQi2b1AUsXdtMTiZj/4kC7dmLWzkFW N2yQ==

In-reply-to: <L0S.3f{Wf.1k5gIG2748v.1U6uOa@seznam.cz>

List-archive: <http://mymaillists.usc.edu/sympa/arc/dinosaur-l>

List-help: <mailto:sympa@mymaillists.usc.edu?subject=help>

List-id: <dinosaur-l.mymaillists.usc.edu>

List-owner: <mailto:dinosaur-l-request@mymaillists.usc.edu>

List-post: <mailto:dinosaur-l@mymaillists.usc.edu>

List-subscribe: <mailto:sympa@mymaillists.usc.edu?subject=subscribe%20dinosaur-l>

List-unsubscribe: <mailto:sympa@mymaillists.usc.edu?subject=unsubscribe%20dinosaur-l>

References: <L0S.3f{Wf.1k5gIG2748v.1U6uOa@seznam.cz>

Reply-to: Tyler Greenfield <tgreenfield999@gmail.com>

Sender: dinosaur-l-request@usc.edu

There are two possible orientations, upward and downward, for the parascapular spines ofÂGigantspinosaurus and Yingshanosaurus.ÂBoth have spines with large, flattened bases. It seems most likely that the base lay flat across the scapula, with the spine itself pointing either up or down. Tracy Ford made a diagram showing the orientations for Gigantspinosaurus (http://www.paleofile.com/Dinosaurs/Armor/Gigantospinosaurus.asp) and I made one for Yingshanosaurus (https://incertaesedisblog.wordpress.com/yingshanosaurus-parascapular-spines/).

On Sun, Jan 12, 2020 at 2:48 PM Poekilopleuron <dinosaurtom2015@seznam.cz> wrote:

Good day to all listmembers, I would like to ask, what is the current evidence for the presence and orientation of shoulder spines in various stegosaur taxa? Thank you in advance! Tom

References:

[dinosaur] Stegosaur shoulder spines
- From: Poekilopleuron <dinosaurtom2015@seznam.cz>