File:20191107 Panarthropoda head segments appendages extant en.png

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Description
English: Alignment of anterior somites (body segments) and appendages across various extant panarthropod taxa (as of mid 2010s).
  • 0: Ocular somite
  • 1-2: Somite 1-10 (further somite(s) ommited)
  • Dark grey: Somite(s) of head tagma (head/cephalon/prosoma)
  • Red/P: Protocerebral somite/appendage
  • Yellow/D: Deutocerebral somite/appendage
  • Blue/T: Tritocerebral somite/appendage

Onychophora (onychophoran/velvet worm):

  • Pan: Primary antenna
  • Ja: Jaw
  • Slg: Slime gland/slime papilla
  • Lo: Lobopod

Tardigrada (tardigrade/waterbear/moss piglet):

  • Sty: Stylet
  • Lo: Lobopod

Chelicerata: Pycnogonida (pycnogonid/sea spider):

  • ?: (Appendage unknown)
  • Chf: Chelifore
  • P: Palp
  • Ovg: Oviger
  • L: (Arthropodized) Leg/walking leg

Chelicerata: Euhelicerata (euchelicerate: "merostome" and arachnid):

Myriapoda (myriapod: centipede, millipede etc.):

  • Hy/Lbr: Hypostome/labrum complex
  • An: Antenna
  • Inc: intercalary segment
  • Mnd: Mandible
  • Mx1: First maxilla
  • Mx2: Second maxilla
  • L: (Arthropodized) Leg/walking leg

"Crustacea" (crustacean: shrimp, crab, barnacle, waterflea etc.):

  • Hy/Lbr: Hypostome/labrum complex
  • An1: First antenna/antennula/antennule
  • An2: Second antenna/antenna
  • Mnd: Mandible
  • Mx1: First maxilla/maxillula
  • Mx2: Second maxilla/maxilla
  • L: (Arthropodized) Leg/walking leg

Hexapoda (hexapod: insect, springtail etc.)

  • Hy/Lbr: Hypostome/labrum complex
  • An: Antenna
  • Inc: intercalary segment
  • Mnd: Mandible
  • Mx: Maxilla
  • Lbi: Labium
  • L: (Arthropodized) Leg/walking leg

Fossil taxa-included version:

Euarthropod version:

References：

Overall review.
Chelicerata, Megacheira.
日本語:
Date
Source Own work
Author Junnn11

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w:en:Creative Commons
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Date/TimeThumbnailDimensionsUserComment
current04:59, 17 October 2022Thumbnail for version as of 04:59, 17 October 20221,550 × 530 (34 KB)Junnn11 (talk | contribs)Onychophora head
15:24, 30 July 2022Thumbnail for version as of 15:24, 30 July 20221,550 × 530 (33 KB)Junnn11 (talk | contribs)new diagram
14:37, 19 April 2022Thumbnail for version as of 14:37, 19 April 20221,525 × 530 (31 KB)Junnn11 (talk | contribs)colour
11:14, 7 November 2019Thumbnail for version as of 11:14, 7 November 20191,525 × 530 (34 KB)Junnn11 (talk | contribs)Cross-wiki upload from commons.wikimedia.org

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