Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

The evolution of biramous appendages in crustaceans is central to the debate on the origin of the arthropods. It is proposed that the biramous limb evolved through the basal fusion of adjacent pairs of ancestrally uniramous appendages. As a result, the existing system of homology, in which uniramous and biramous appendages are considered equivalent, may be invalid. Similarly, the homology of individual body segments between uniramians, such as insects and myriapods, and arthropod groups with biramous limbs is also called into question. Two uniramian segments, or a diplosegment, may be homologous to a single body segment in biramous groups.

Bibliography

Emerson, M. J., & Schram, F. R. (1990). The Origin of Crustacean Biramous Appendages and the Evolution of Arthropoda. Science, 250(4981), 667–669.

Authors 2
  1. Michael J. Emerson (first)
  2. Frederick R. Schram (additional)
References 12 Referenced 35
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Dates
Type When
Created 18 years, 10 months ago (Oct. 5, 2006, 6:10 p.m.)
Deposited 1 year, 7 months ago (Jan. 12, 2024, 10:18 a.m.)
Indexed 3 months, 1 week ago (May 18, 2025, 12:22 p.m.)
Issued 34 years, 9 months ago (Nov. 2, 1990)
Published 34 years, 9 months ago (Nov. 2, 1990)
Published Print 34 years, 9 months ago (Nov. 2, 1990)
Funders 0

None

@article{Emerson_1990, title={The Origin of Crustacean Biramous Appendages and the Evolution of Arthropoda}, volume={250}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.250.4981.667}, DOI={10.1126/science.250.4981.667}, number={4981}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Emerson, Michael J. and Schram, Frederick R.}, year={1990}, month=nov, pages={667–669} }