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DATE 2016-10-01

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MESSAGE
DATE 2016-10-10
FROM Ruben Safir
SUBJECT Subject: [Learn] Fwd: Re: [dinosaur] phylogeny tyrannosauroid dinosaurs
From learn-bounces-at-nylxs.com Mon Oct 10 01:13:09 2016
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-------- Forwarded Message --------
Subject: Re: [dinosaur] phylogeny tyrannosauroid dinosaurs
Date: Sat, 8 Oct 2016 12:08:59 +0200
From: David Marjanovic
Reply-To: David Marjanovic
To: dinosaur-l-at-usc.edu

> 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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  1. 2016-10-04 ruben safir <ruben-at-mrbrklyn.com> Re: [Learn] Check List of Texts to learn Cladistics and
  2. 2016-10-04 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] Library access
  3. 2016-10-04 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] Library access
  4. 2016-10-04 Christopher League <christopher.league-at-liu.edu> Re: [Learn] phylogenetics
  5. 2016-10-04 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] 3rd scans and displays for msueums
  6. 2016-10-04 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] =?utf-8?q?Residual_diversity_estimates=E2=80=99_do_not_co?=
  7. 2016-10-04 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] another paper on this topic to dig through
  8. 2016-10-04 Ruben Safir <ruben.safir-at-my.liu.edu> Subject: [Learn] Basic Phylogeny and Systematics
  9. 2016-10-04 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Library access
  10. 2016-10-05 Ruben Safir <mrbrklyn-at-panix.com> Re: [Learn] 3rd scans and displays for msueums
  11. 2016-10-05 ruben safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: Re: Check List of Texts to learn Cladistics and
  12. 2016-10-06 From: "Ruben.Safir" <ruben.safir-at-my.liu.edu> Subject: [Learn] TNT - Boom
  13. 2016-10-06 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] tomorrow
  14. 2016-10-09 ruben safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: phylogeny tyrannosauroid dinosaurs
  15. 2016-10-09 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: Re: phylogeny tyrannosauroid dinosaurs
  16. 2016-10-09 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: Re: [dinosaur] phylogeny tyrannosauroid dinosaurs
  17. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] Paleo meeting time
  18. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] phylogeny tyrannosauroid dinosaurs
  19. 2016-10-10 Steve Brusatte <brusatte-at-gmail.com> Re: [Learn] phylogeny tyrannosauroid dinosaurs
  20. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] phylogeny tyrannosauroid dinosaurs
  21. 2016-10-10 From: =?UTF-8?B?RGF2aWQgxIxlcm7DvQ==?= <david.cerny1-at-gmail.com> Re: [Learn] [dinosaur] phylogeny tyrannosauroid dinosaurs
  22. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] [dinosaur] phylogeny tyrannosauroid dinosaurs
  23. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] [dinosaur] phylogeny tyrannosauroid dinosaurs
  24. 2016-10-10 Dalton Meyer <paleonerd12-at-gmail.com> Re: [Learn] [dinosaur] phylogeny tyrannosauroid dinosaurs
  25. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] AI research
  26. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] CTScan in paelo
  27. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: Re: [dinosaur] phylogeny tyrannosauroid dinosaurs
  28. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] http://palaeos.com/phylogeny/index.html
  29. 2016-10-10 Ruben Safir <ruben.safir-at-my.liu.edu> Subject: [Learn] maxillary fenestra and promaxillary fenestra
  30. 2016-10-10 Christopher League <league-at-contrapunctus.net> Subject: [Learn] Paleo meeting time
  31. 2016-10-10 Christopher League <league-at-contrapunctus.net> Subject: [Learn] Paleo meeting time
  32. 2016-10-10 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] promaxillary fenestra
  33. 2016-10-13 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] Invitation: Phylogenetics project mtg -at- Thu 2016-10-13
  34. 2016-10-13 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] Library access
  35. 2016-10-13 ruben safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: access to the screen
  36. 2016-10-13 ruben safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: access to the screen
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  39. 2016-10-14 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Fwd: Check out this picture...
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  43. 2016-10-15 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] 3d scanning in the field
  44. 2016-10-15 Ruben Safir <mrbrklyn-at-panix.com> Subject: [Learn] 3d scanning in the field
  45. 2016-10-16 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Jobs
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  47. 2016-10-20 Christopher League <league-at-contrapunctus.net> Re: [Learn] tomorrows schedule and plan got the week
  48. 2016-10-21 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] tomorrows schedule and plan got the week
  49. 2016-10-21 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] publication
  50. 2016-10-21 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] thesis resources
  51. 2016-10-25 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Phylogenetics educational links
  52. 2016-10-27 Christopher League <league-at-contrapunctus.net> Re: [Learn] Phylogenetics educational links
  53. 2016-10-27 Ruben Safir <mrbrklyn-at-panix.com> Re: [Learn] Phylogenetics educational links
  54. 2016-10-27 Ruben Safir <mrbrklyn-at-panix.com> Re: [Learn] Phylogenetics educational links
  55. 2016-10-27 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Learn] Phylogenetics educational links
  56. 2016-10-27 Ruben Safir <mrbrklyn-at-panix.com> Re: [Learn] Phylogenetics educational links
  57. 2016-10-30 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] Orders for the Thesis,
  58. 2016-10-31 Christopher League <league-at-contrapunctus.net> Re: [Learn] cuda kernels
  59. 2016-10-31 Ruben Safir <ruben.safir-at-my.liu.edu> Re: [Learn] cuda kernels
  60. 2016-10-31 Christopher League <league-at-contrapunctus.net> Re: [Learn] cudaMallac
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  63. 2016-10-31 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Learn] cuda kernels
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