MESSAGE
DATE | 2016-10-09 |
FROM | Ruben Safir
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SUBJECT | Subject: [Learn] Fwd: Re: [dinosaur] phylogeny tyrannosauroid dinosaurs
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From learn-bounces-at-nylxs.com Sun Oct 9 00:54:03 2016 Return-Path: X-Original-To: archive-at-mrbrklyn.com Delivered-To: archive-at-mrbrklyn.com Received: from www.mrbrklyn.com (www.mrbrklyn.com [96.57.23.82]) by mrbrklyn.com (Postfix) with ESMTP id E38E4163E9C; Sun, 9 Oct 2016 00:54:02 -0400 (EDT) X-Original-To: learn-at-nylxs.com Delivered-To: learn-at-nylxs.com Received: from [10.0.0.62] (flatbush.mrbrklyn.com [10.0.0.62]) by mrbrklyn.com (Postfix) with ESMTP id A809B161469 for ; Sun, 9 Oct 2016 00:53:59 -0400 (EDT) References: <379590c8-ef8e-2e68-0d9b-af92468ef88c-at-mrbrklyn.com> To: learn-at-nylxs.com From: Ruben Safir X-Forwarded-Message-Id: <379590c8-ef8e-2e68-0d9b-af92468ef88c-at-mrbrklyn.com> Message-ID: <43a7da5b-e6cc-4aee-dc6f-88e5de9a581c-at-mrbrklyn.com> Date: Sun, 9 Oct 2016 00:53:59 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <379590c8-ef8e-2e68-0d9b-af92468ef88c-at-mrbrklyn.com> Content-Type: multipart/mixed; boundary="------------DA549531DCB1CC7FC631FBA0" Subject: [Learn] Fwd: Re: [dinosaur] phylogeny tyrannosauroid dinosaurs X-BeenThere: learn-at-nylxs.com X-Mailman-Version: 2.1.17 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: learn-bounces-at-nylxs.com Sender: "Learn"
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X-Account-Key: account1 X-Mozilla-Keys: Return-Path: X-Original-To: ruben-at-mrbrklyn.com Delivered-To: ruben-at-mrbrklyn.com Received: from mx0b-00164701.pphosted.com (mx0b-00164701.pphosted.com [67.231.157.15]) by mrbrklyn.com (Postfix) with ESMTP id 8D8BC163E9C for ; Sat, 8 Oct 2016 06:09:17 -0400 (EDT) Received: from pps.filterd (m0087756.ppops.net [127.0.0.1]) by mx0b-00164701.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u98A2nEf069497; Sat, 8 Oct 2016 03:09:13 -0700 Received: from sympa-app1.usc.edu (sympa-app1.usc.edu [68.181.205.50]) by mx0b-00164701.pphosted.com with ESMTP id 25xwr8gdev-1; Sat, 08 Oct 2016 03:09:13 -0700 Received: by sympa-app1.usc.edu (Postfix, from userid 498) id B4B6721471; Sat, 8 Oct 2016 03:09:12 -0700 (PDT) X-Original-To: dinosaur-l-at-mymaillists.usc.edu Delivered-To: dinosaur-l-at-mymaillists.usc.edu Received: from mx0b-00164701.pphosted.com (mx0b-00164701.pphosted.com [67.231.157.15]) by sympa-app1.usc.edu (Postfix) with ESMTPS id C30C92143C for ; Sat, 8 Oct 2016 03:09:02 -0700 (PDT) Received: from pps.filterd (m0087756.ppops.net [127.0.0.1]) by mx0b-00164701.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u98A3DCJ069585 for ; Sat, 8 Oct 2016 03:09:01 -0700 Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) by mx0b-00164701.pphosted.com with ESMTP id 25xwr8gddn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Sat, 08 Oct 2016 03:09:01 -0700 Received: from [178.12.255.139] by 3capp-gmx-bs66.server.lan (via HTTP); Sat, 8 Oct 2016 12:08:59 +0200 MIME-Version: 1.0 Message-ID: From: "David Marjanovic" To: dinosaur-l-at-usc.edu Content-Type: text/plain; charset=UTF-8 Date: Sat, 8 Oct 2016 12:08:59 +0200 Importance: normal Sensitivity: Normal In-Reply-To: <379590c8-ef8e-2e68-0d9b-af92468ef88c-at-mrbrklyn.com> References: <379590c8-ef8e-2e68-0d9b-af92468ef88c-at-mrbrklyn.com> X-UI-Message-Type: mail X-Priority: 3 X-Provags-ID: V03:K0:sqQ6621hQSAw8b3ttiLjU4wtx2dIzVQJqMENioPRMO6 mK3SZMZ8yjoYVEGpwQkazP+kE2dSfsV/xNT5hfdKUQz49vq/+L X/CPsKT4DGVKNHmXAbgcgucwGJvbY1gl+Xa0eyvDHnPAW++zK+ Jv1Vzi5JJtMhQ1hhKN13ROwzzDxly9wabklPFj5+cAT0jQHn+J XaNcmcuD+kk2WcJ879ICgWncxHq2BVLftr/OMEYkbjcEJXJTpD 6asSx0GQwyPrB0frbmvYnQ9Z+Tnwuvjf73+Uqi09W0Ken9QNKY /CiQJI= X-UI-Out-Filterresults: notjunk:1;V01:K0:9dKC6HkrndY=:nUgJYmdr91wFuU9ezVwtw8 +si70bSZPf+fHj2F3L6Nl2616kcOVhgtEzGgXF7GucsQgKw1/zp9kxE6VYJsNfDqZmFtgqjJS NI1QlFwcmfhQEHosYpRxeb34aNing4pMydRJXlbBdWLoiPSL23/XxMGfoE+R8N3KqjSwEnAgx kKb0NO6BFHfcOWTlK1ygElgSSm3Bcvt5KIUa21OAAQTnxbvYKHbplAn65VSxLvWwptVQobiYh QEP3KshQ/wdargxWHsdDEoVLfrkkDHT1DDeHvHi5GDqmq4RKgO6XeMQM+GjMGOpjeIHkImhTk ltvZyOtITZql8O1SdpBQ+TKo56ALJH/GfpTtKlJWsE8FCPkIH+BqfYR1iVaij68LSiLfuMMy2 5JAgd6b8+T2gmJNnmaNZfX61m7KQ+D3vn8ApMMV/PRDn374m3wmup+6xiznRJTHTCcPMLOuNX NHmJwFzF8A== X-Proofpoint-SPF-Result: pass X-Proofpoint-SPF-Record: v=spf1 redirect=gmx.net X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-10-08_04:,, signatures=0 X-Proofpoint-Spam-Details: rule=inbound_notspam policy=inbound score=0 priorityscore=0 malwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0 clxscore=266 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609300000 definitions=main-1610080178 Subject: Re: [dinosaur] phylogeny tyrannosauroid dinosaurs Reply-To: "David Marjanovic" X-Loop: dinosaur-l-at-mymaillists.usc.edu X-Sequence: 725 Errors-to: dinosaur-l-owner-at-usc.edu Precedence: list Precedence: bulk Sender: dinosaur-l-request-at-usc.edu X-no-archive: yes List-Id: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-10-08_04:,, signatures=0 X-Proofpoint-Spam-Reason: safe
> I don't know what ventral and anterior margins are and what angle is > being measured. > > [...] > > 13) Premaxilla, orientation and shape of anterior margin: smoothly > curved and projection posterodorsally, angle between ventral margin of > premaxilla and anterior margin is less than 90 degrees (0); smoothly > curved and projecting vertically or slightly anterodorsally, angle > between ventral margin of premaxilla and anterior margin is equal to or > greater than 90 degrees (1); projecting vertically or slightly > anterodorsally, with a discrete inflection point between a more vertical > ventral portion and a more horizontal dorsal portion (2). ORDERED > (Brusatte et al. 2010:13).
"Anterior" is simply "front". "Ventral" is "down" in this and most other cases: venter = belly. So, the ventral margin of the pmx is the one with the teeth. You hold a ruler to the front side, another along the toothrow, and measure the angle between them.
The character could also be worded as "pmx pointed (0); blunt, rounded (1); rectangular or slightly overhanging (2)", but that wouldn't be precise enough to deal with borderline cases. (In my work I've encountered lots of characters that were worded in such imprecise ways, and lots of borderline cases that were hard to score for such characters.)
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X-Account-Key: account1 X-Mozilla-Keys: Return-Path: X-Original-To: ruben-at-mrbrklyn.com Delivered-To: ruben-at-mrbrklyn.com Received: from mx0b-00164701.pphosted.com (mx0b-00164701.pphosted.com [67.231.157.15]) by mrbrklyn.com (Postfix) with ESMTP id CEAB4163E9C for ; Sat, 8 Oct 2016 06:01:11 -0400 (EDT) Received: from pps.filterd (m0087756.ppops.net [127.0.0.1]) by mx0b-00164701.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u989qw44061841; Sat, 8 Oct 2016 03:01:05 -0700 Received: from sympa-app1.usc.edu (sympa-app1.usc.edu [68.181.205.50]) by mx0b-00164701.pphosted.com with ESMTP id 25xwr8gbsc-1; Sat, 08 Oct 2016 03:01:05 -0700 Received: by sympa-app1.usc.edu (Postfix, from userid 498) id ACB6D21471; Sat, 8 Oct 2016 03:01:04 -0700 (PDT) X-Original-To: dinosaur-l-at-mymaillists.usc.edu Delivered-To: dinosaur-l-at-mymaillists.usc.edu Received: from mx0b-00164701.pphosted.com (mx0a-00164701.pphosted.com [67.231.149.15]) by sympa-app1.usc.edu (Postfix) with ESMTPS id D4A1421471 for ; Sat, 8 Oct 2016 03:00:54 -0700 (PDT) Received: from pps.filterd (m0085734.ppops.net [127.0.0.1]) by mx0b-00164701.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u989qgEJ025113 for ; Sat, 8 Oct 2016 03:00:54 -0700 Received: from mrbrklyn.com (www.mrbrklyn.com [96.57.23.82]) by mx0b-00164701.pphosted.com with ESMTP id 25xfrh1fyt-1 for ; Sat, 08 Oct 2016 03:00:54 -0700 Received: from [10.0.0.62] (flatbush.mrbrklyn.com [10.0.0.62]) by mrbrklyn.com (Postfix) with ESMTP id B7762163E9C for ; Sat, 8 Oct 2016 06:00:53 -0400 (EDT) From: ruben-at-mrbrklyn.com To: dinosaur-l-at-usc.edu Message-ID: <379590c8-ef8e-2e68-0d9b-af92468ef88c-at-mrbrklyn.com> Date: Sat, 8 Oct 2016 06:00:53 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: Quoted-printable MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-10-08_04:,, signatures=0 X-Proofpoint-Spam-Details: rule=inbound_notspam policy=inbound score=0 priorityscore=0 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=80 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609300000 definitions=main-1610080175 Subject: [dinosaur] phylogeny tyrannosauroid dinosaurs Reply-To: ruben-at-mrbrklyn.com X-Loop: dinosaur-l-at-mymaillists.usc.edu X-Sequence: 724 Errors-to: dinosaur-l-owner-at-usc.edu Precedence: list Precedence: bulk Sender: dinosaur-l-request-at-usc.edu X-no-archive: yes List-Id: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-10-08_04:,, signatures=0 X-Proofpoint-Spam-Reason: safe
I'm pouring over this paper on phylogeny tyrannosauroid dinosaurs. I'm not understanding what is being measure in the premaxilla bone, which is a measured characteristic 13. Does anyone have an example of a diagram of what is being measured?
(Premaxilla orientationa and shape of anterior margin)
I don't know what ventral and anterior margins are and what angle is being measured.
Article: https://urldefense.proofpoint.com/v2/url?u=3Dhttp-3A__www.nature.c= om_articles_srep20252&d=3DDQICaQ&c=3DclK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSf= nc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=3DT9kOW7g60Kb84obvU= Qo8WAiaqdrh9AyDKlV_MWsusrY&s=3DoJWTP-Ni-W09CuupXp-ptjUW9DlHGKxlr-RvbixPd8M&= e=3D=20
13) Premaxilla, orientation and shape of anterior margin: smoothly curved and projection posterodorsally, angle between ventral margin of premaxilla and anterior margin is less than 90 degrees (0); smoothly curved and projecting vertically or slightly anterodorsally, angle between ventral margin of premaxilla and anterior margin is equal to or greater than 90 degrees (1); projecting vertically or slightly anterodorsally, with a discrete inflection point between a more vertical ventral portion and a more horizontal dorsal portion (2). ORDERED (Brusatte et al. 2010:13).
This character is slightly modified following Brusatte et al. (2014:485). We have transformed the original character of Brusatte et al. (2010:13) into an ordered multistate by adding a new intermediate state referring to an approximately vertical (or slightly anterodorsally inclined) anterior margin of the ventral portion of the premaxilla. State 2 now refers to a special condition of this state, in which the anterior margin is vertical (or anterodorsally inclined) and there is also a discrete inflection point between the more vertical ventral portion of the anterior margin and the more horizontal dorsal portion of the margin. Taxa with this condition, therefore, do not possess a smoothly curved anterior margin of the premaxilla. Tyrannosauroids are characterized by either state 1 or state 2, with state 2 referring to a subset of basal tyrannosauroids (Dilong, Guanlong, Kileskus, Proceratosaurus, Sinotyrannus).
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