Jump to content

File:Eocarcinus reconstructon.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (2,205 × 3,612 pixels, file size: 737 KB, MIME type: image/jpeg)

Summary

Description
English: The new reconstruction of the habitus of Eocarcinus praecursor that takes the findings of this article into account (compare with Fig. 1). This relates to the shape and posture of the chelae, the transition between thorax and pleon, the elevated position of the 4th and 5th pereopods, the position in a notch between the 1st and 2nd pleomeres of the latter, and the shape and the posterior end of the pleon. The dactylus of the 5th pereopod is shown as being similar to those of the other legs, but a sub-chelate or chelate condition is also likely (see text). Furthermore, the relative proportions of thorax and pleon were adjusted. The telson is somewhat ambiguous. The reconstruction of the antennae is based on a number of anomalan and podotreme brachyuran species. Since E. praecursor is nested within Meiura, the 1st antennae most likely had the characteristic double bent Z-shape with short asymmetric flagella (see Scholtz and Richter, 1995). The flagella of the 2nd antennae of galatheids, and dromiaceans are relatively thin and longer than those of Eubrachyura. All Brachyura lack a scaphocerite. Two versions are shown: one with the pleon stretched out as in the fossil specimens (top) and one more hypothetical with a pleon flexed under the sternum (bottom). Artwork: Fabian Scholtz.
Date
Source Eocarcinus praecursor Withers, 1932 (Malacostraca, Decapoda, Meiura) is a stem group brachyuran Arthropod Structure & Development
Author Gerhard Scholtz
Permission
(Reusing this file)
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current19:33, 15 December 2020Thumbnail for version as of 19:33, 15 December 20202,205 × 3,612 (737 KB)HemiaucheniaTransferred from https://ars.els-cdn.com/content/image/1-s2.0-S1467803920301146-gr11_lrg.jpg

The following 3 pages use this file:

Global file usage

The following other wikis use this file:

Metadata