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The discovery of embryos in certain fossil fishes not only shows that internal fertilization and live birth evolved early in vertebrate history, but also raises questions about the origin of
jawed vertebrates. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your institution
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Contact customer support REFERENCES * Long, J. A., Trinajstic, K. & Johanson, Z. _Nature_ 457, 1124–1127 (2009). Article ADS CAS Google Scholar * Long, J. A., Trinajstic, K., Young,
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Scholar Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Per E. Ahlberg is in the Subdepartment of Evolutionary Organismal Biology, Department of Physiology and
Developmental Biology, Uppsala University, 752 36 Uppsala, Sweden. [email protected], Per E. Ahlberg Authors * Per E. Ahlberg View author publications You can also search for this author
inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Ahlberg, P. Birth of the jawed vertebrates. _Nature_ 457, 1094–1095 (2009).
https://doi.org/10.1038/4571094a Download citation * Published: 25 February 2009 * Issue Date: 26 February 2009 * DOI: https://doi.org/10.1038/4571094a SHARE THIS ARTICLE Anyone you share
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