DEVELOPMENTAL TRAIT EVOLUTION IN TRILOBITES

@article{Fusco2012DEVELOPMENTALTE,
  title={DEVELOPMENTAL TRAIT EVOLUTION IN TRILOBITES},
  author={Giuseppe Fusco and Theodore Garland Jr. and Gene Hunt and Nigel C. Hughes},
  journal={Evolution},
  year={2012},
  volume={66}
}
We performed a tree-based analysis of trilobite postembryonic development in a sample of 60 species for which quantitative data on segmentation and growth increments between putative successive instars are available, and that spans much of the temporal, phylogenetic, and habitat range of the group. [] Key Method Three developmental traits were investigated: the developmental mode of trunk segmentation, the average per-molt growth rate, and the conformity to a constant per-molt growth rate (Dyar's rule), for…
Development, Trait Evolution, and the Evolution of Development in Trilobites.
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  • 2017
TLDR
Comparisons indicate that the association between segmentation events and the timing of shifts in the rate of ontogenetic shape change varies across species, and developmental traits appear to have been relatively labile across the clade's evolutionary history.
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TLDR
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TLDR
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The Development of the Silurian Trilobite Aulacopleura koninckii Reconstructed by Applying Inferred Growth and Segmentation Dynamics: A Case Study in Paleo-Evo-Devo
TLDR
The novel reconstruction of the development of A. koninckii permits visualization of patterns of relative and absolute growth and segmentation as never before possible for a fossilized arthropod ontogeny.
A simple generative model of trilobite segmentation and growth
Generative growth models have been the basis for numerous studies of morphological diversity and evolution. Most work has focused on modeling accretionary growth systems, with much less attention to
Metamorphosis Is Ancestral for Crown Euarthropods, and Evolved in the Cambrian or Earlier.
  • J. Wolfe
  • Environmental Science, Geography
    Integrative and comparative biology
  • 2017
TLDR
It is inferred that metamorphosis was likely ancestral for crown arthropods, contradicting this assumption, and using fossils and new dated phylogenies, supports this assumption.
The post‐embryonic ontogeny of the early Cambrian trilobite Estaingia bilobata from South Australia: trunk development and phylogenetic implications
TLDR
The essentially complete post‐embryonic ontogenetic series of E. bilobata from the Emu Bay Shale is described, and patterns of growth relating to articulation and segmentation in this early Cambrian arthropod are investigated.
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