How do we know what today’s lifeforms were like when they first evolved? For years, biologists could make inferences about how recent species shared common ancestors based on an approach called ...
P Skelton, A Smith and N Monks Cambridge University Press, Cambridge, UK; 2002. 80pp plus CD. £29.95, hardback ISBN 0-521-52341-9. There is barely a field of biology that remains untouched by the use ...
In On the Origin of Species, Charles Darwin proclaimed that “our classifications will come to be, as far as they can be so made, genealogies”. That turned out to be easier said than done. Even as late ...
An Interdisciplinary Perspective. Henry M. Hoenigswald and Linda F. Wiener, eds. University of Pennsylvania Press, Philadelphia, 1987. 286 pp. $25. It isn’t often that an analytical technique ...
Cladistics is one way scientists classify organisms. A cladogram shows the nature of evolutionary relationships that may have occurred, similar to a family tree. You will make a cladogram in this ...
Cladistic and taxonomic treatments of the same plant group usually exhibit a mixture of congruences and incongruences. The question arises in the case of the incongruences as to which version is right ...
A cladistic interpretation of seed plant phylogeny is presented that supports the traditional morphological hypothesis: [Cycadales-(Ginkgoales-(Confiferales-(Gnetales-Angiosperms)))]. Gnetales and ...
Cladistics is one way scientists classify organisms. A cladogram shows the nature of evolutionary relationships that may have occurred, similar to a family tree. You will make a cladogram in this ...
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