Abstract
The configurations of spines found on the posterior face of the first basipodal segment of the fourth pair of swimming legs in female calanoids of the family Aetideidae may be interpreted, by implementing Dollo's Law, as structures compensating for the loss of the specialized fifth legs. The same law allows the explanation of the phylogenetic sequence of states observed in this particular character from an evolutionary perspective, namely, by relating the origin of each specific condition found to the (limited) possibilities comprised in the previous configuration. The value of Dollo's Law for either explaining observed character state sequences or, alternatively, for corroborating phylogenetic hypotheses, is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
