File:EB1911 Ichthyology - Morphology of the vertebral column.jpg

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Summary

Description

English: Diagrammatic transverse sections to illustrate the morphology of the vertebral column in fish. See legend below.

Date

published 1911

Source

“Ichthyology,” Encyclopædia Britannica (11th ed.), v. 14, 1911, p. 258, fig. 13.

Author

From Wiedersheim, Grundriss der vergleichenden Anatomie.

Permission
(Reusing this file)

This image comes from the 13^th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

A,	Primitive conditions as seen in any young embryo.
B,	Condition as it occurs in Cyclostomata, sturgeons, embryos of bony Actinopterygians.
C,	Condition found in Selachians and Dipnoans.
D and E,	Illustrating the developmental process in bony Actinopterygians and higher vertebrates.
c,	Centrum.
d.a,	Dorsal arcualia.
n.a,	Neural arch.
nc,	Notochord.
nc.ep,	Chordal epithelium.
n.sp,	Neural spine.
sh.1,	Primary sheath.
sh.2,	Secondary sheath.
sk.l,	Connective tissue.
tr.p,	Transverse process.
v.a,	Ventral arcualia.

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	19:43, 19 August 2019		877 × 877 (266 KB)	Bob Burkhardt	{{Information \|description ={{en\|1=Diagrammatic transverse sections to illustrate the morphology of the vertebral column in fish. See legend below.}} \|date =published 1911 \|source =“Ichthyology,” ''Encyclopædia Britannica'' (11th ed.), v. 14, 1911, p. 258, fig. 13. \|author =From Wiedersheim, ''Grundriss der vergleichenden Anatomie''. \|permission ={{PD-Britannica}} }} {\| \|-valign="top" \|A,\|\|Primitive conditions as seen in any young embryo. \|-valign="top" \|B,\|\|Condi...

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