Zahn Drawings of Xenopus laevis Development
Image sets of Xenopus laevis development
Staging based on Normal Table of Xenopus laevis A systematic and chronological survey of the development from the fertilized egg till the end of metamorphosis: Edited by PD Nieuwkoop and J Faber (1994).
Illustrations by Natalya Zahn.
These drawings closely match the aesthetic of the familiar NF stage series.
Importantly, the illustrations are Open Access, distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial use, distribution and reproduction in any medium provided that the original work is properly attributed.
What this means to you:
• Free use of any/all of the Zahn drawings for non-commercial purposes, such as lecture slides, handouts, lab notebooks, lab worksheets, posters, power-point slides.
• Free use of up to 6 of the Zahn drawings per published article. The same image can be re-used multiple times in figures and diagrams, but you are limited to 6 unique images per article.
Want to use more than 7 images?
• Contact illustrator Natalya Zahn [natalya@natalya.com] for permission to use 7 or more illustrations (Fees may apply).
To use the Zahn drawings in your published work, do these 3 things:
1) Write this in captions of any figures: Xenopus illustrations © Natalya Zahn (2022).
2) Cite Xenbase as the source of the illustrations: Xenbase (www.xenbase.org RRID:SCR_003280), and
3) Cite this article: Zahn et al., Normal Table of Xenopus development: a new graphical resource. Development (2022) 149 (14): dev200356. https://doi.org/10.1242/dev.200356.
Click to go to article at Development.
Want to use the Zahn drawings in a commercial publication, like a text book or science magazine?
• Request permission from the Illustrator Natalya Zahn [natalya@natalya.com] to use any illustration in a commercial publication (Fees apply).
Click here to view and download the accompanying Xenopus staging poster.
Or, click here to access the PDF with supplementary information, PDF+SI (poster is the last page).
Grouped stage image sets:
Click on image to view high-resolution enlargement in new tab. Secondary-click and "save image" or under browser "file" menu, "save page as" to download enlargement.
* Please note that the grouped image sets are a composite of individual images. They are not to be reproduced for commercial purposes without permission from the copyright holder.
Individual NF stage images:
Click on image to view high-resolustion enlargement in new tab. Secondary-click and "save image" or "save page as" to download enlargement.
Previously published Zahn drawings:
XenHead images:
The Zahn drawings: new illustrations of Xenopus embryo and tadpole stages for studies of craniofacial development
Zahn, Levin, and Adams. Development. 2017 Aug 1;144(15):2708-2713. doi: 10.1242/dev.151308.
Anterior views:
Captioned detailed drawing
Detailed drawing
Flat drawing
Figure caption
NF stage 22. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 23. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 24. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up. NF stage 24-25 for detailed drawing and flat drawing.
NF stage 25. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 26. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 27. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 28. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 29-30. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 32. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 33-34. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 37-38. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 40. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 43. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 45. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 48. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
NF stage 50. Xenopus laevis embryo, drawn from brightfield microscopy, anterior view, dorsal up.
Dorsal views:
Captioned detailed drawing
Detailed drawing
Flat drawing
Figure caption
NF stage 23. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 29-30. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 33-34. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 37-38. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 40. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 43. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 45. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 48. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
NF stage 50. Xenopus laevis embryo, drawn from brightfield microscopy, dorsal view, anterior left.
Lateral and ventral views:
Captioned detailed drawing
Detailed drawing
Flat drawing
Figure caption
NF stage 21-22. Xenopus laevis embryo, drawn from brightfield microscopy, ventral view, anterior left. NF stage 22 for detailed drawing and flat drawing, ventral view, anterior up.
NF stage 23. Xenopus laevis embryo, drawn from brightfield microscopy, lateral view, anterior left. NF stage 23. Ventral view, anterior left. NF stage 23 detailed drawing and flat drawing, ventral view, anterior up.
NF stage 25-26. Xenopus laevis embryo, drawn from brightfield microscopy, ventral view, anterior left. NF stage 25-26. detailed drawing and flat drawing, ventral view, anterior up.
NF stage 27. Xenopus laevis embryo, drawn from brightfield microscopy, ventral view, anterior left. NF stage 27. Detailed drawing and flat drawing, ventral view, anterior up.
Last Updated: 2019-09-01
