Climbing life's tree

  title={Climbing life's tree},
  author={Graham E. Budd},
  • G. Budd
  • Published 2 August 2001
  • Biology, Medicine
  • Nature
Are palaeoscolecids ancestral ecdysozoans?
It is concluded that previous interpretations in which palaeoscolecids occupy a deeper position in the ecdysozoan tree lack particular morphological support and rely instead on a paucity of preserved characters, bears out a more general point that fossil taxa may appear plesiomorphic merely because they preserve only plesiomorphies, rather than the mélange of primitive and derived characters anticipated of organisms properly allocated to a position deep within animal phylogeny. Expand
Why are arthropods segmented?
  • G. Budd
  • Biology, Medicine
  • Evolution & development
  • 2001
SUMMARY Segmentation as an attribute of organisms is being increasingly discussed in the recent literature because (1) new phylogenies suggest that organisms classically considered to be segmentedExpand
Typological thinking: Then and now
Published in: Journal of Experimental Zoology Part B: Molecular and Developmental Evolution DOI: 10.1002/jez.b.22796 Publication date: 2018 Document version Publisher's PDF, also known as Version ofExpand
Typological thinking: Then and now
  • J. Witteveen
  • Biology, Medicine
  • Journal of experimental zoology. Part B, Molecular and developmental evolution
  • 2018
It is shown that the authors can make historical and philosophical sense of the continued accusations of typological thinking by looking beyond Mayr, to his contemporary and colleague George Gaylord Simpson, who introduced the typology/population distinction to mark several contrasts in methodology and scientific practice. Expand
A six-gene phylogenetic overview of Basidiomycota and allied phyla with estimated divergence times of higher taxa and a phyloproteomics perspective
A phylogenetic overview of Basidiomycota and related phyla in relation to ten years of DNA based phylogenetic studies since the AFTOL publications in 2007 is provided. Expand
Towards standardizing taxonomic ranks using divergence times – a case study for reconstruction of the Agaricus taxonomic system
ITS data, while useful at lower taxonomic levels, are of limited value for inferring deeper phylogenetic relationships and it is suggested that the establishment of a standardized taxonomic system based on divergence times could result in a more objective, and biologically more meaningful, taxonomic ranking of fungi. Expand
The Fossil Record of the Cambrian “Explosion”: Resolving the Tree of Life1
In the last number of years, fossil discoveries from around the world, and particularly in China, have enabled the reconstruction of many of the deep branches within the invertebrate animal tree ofExpand
Osteological correlates and phylogenetic analysis of deep diving in living and extinct pinnipeds: What good are big eyes?
Testing morphological and diving data from a comprehensive data set, including living and extinct pinnipeds and other select carnivorans as outgroup taxa, demonstrates deep diving has evolved multiple times in crown Pinnipedia. Expand
This essay presents several teaching strategies that can address misconceptions about evolution, including: 1) teaching important concepts in their historical context; 2) having students construct and interpret cladograms; and 3) showing that, when interpreted as evolutionary trees, cladograms make testable predictions of the fossil record. Expand