Refining molluscan characters: morphology, character coding and a phylogeny of the Caenogastropoda

@article{Strong2003RefiningMC,
  title={Refining molluscan characters: morphology, character coding and a phylogeny of the Caenogastropoda},
  author={Ellen E. Strong},
  journal={Zoological Journal of the Linnean Society},
  year={2003},
  volume={137},
  pages={447-554}
}
  • E. Strong
  • Published 1 April 2003
  • Biology
  • Zoological Journal of the Linnean Society
Midgut morphology of gastropod molluscs has been underutilized as a resource of characters for phylogenetic analysis. The exclusion of these features reflects the inference that they will be uninformative in determining phylogenetic relationships because they are functionally correlated. In general, it has been hypothesized that the style sac form of midgut is an adaptation to microphagy and becomes secondarily simplified in taxa that have adopted a macrophagous/carnivorous habit with a… 
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TLDR
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References

SHOWING 1-10 OF 148 REFERENCES
Towards a phylogeny of gastropod molluscs: an analysis using morphological characters
TLDR
This is one of the first attempts to use Morphological and developmental characters to assess the relationships of all major clades using parsimony methods and discusses the major monophyletic groups within gastropods.
The Morphology, Taxonomy and Genetic-Structure of Tatea (Mollusca, Gastropoda, Hydrobiidae), Estuarine Snails From Temperate Australia
TLDR
Investigation of salinity tolerances shows that the two species of Tatea are euryhaline with a similar range of tolerance, and a scenario is presented which may account for the apparent lack of speciation in estuarine animals in temperate Australia.
SNAIL SPEARS AND SCIMITARS: A CHARACTER ANALYSIS OF CONUS RADULAR TEETH
TLDR
This work defines and provides a scheme for coding the states of Conus radular tooth characters, in order to facilitate their use in taxonomic and phylogenetic studies.
Comparative external morphology of the Conus osphradium (Mollusca: Gastropoda)
TLDR
Osphradium size relative to body size varied significantly with habitat type, and number of digitiform ridges varied with food type, but other characters were independent of ecological attributes and may potentially be useful in phylogenetic reconstruction.
Notes on the Morphology of Admete viridula (Gastropoda: Cancellariidae)
TLDR
It is suggested that the family Admetinae is an early offshoot from primitive en,icellariid stock, that the subfamily Trigonostominae contains the most primitive cancellariids studded anatomically to date, and that Cancellariinae coinprise a comparatively recent radiation with specialized chemosensory capabilities.
Investigation of molluscan phylogeny on the basis of 18S rRNA sequences.
TLDR
These data do not provide support for a close relationship between Platyhelminthes (Turbellaria) and Mollusca, but suggest that the latter group belongs to a clade of eutrochozoan coelomates, and obtain strong preliminary support for phylogenetic inferences at more restricted taxonomic levels.
Parallel Evolution in Opisthobranch Gastropods and its Implications for Phylogenetic Methodology
TLDR
It is suggested that emphasis on unique innovation and divergent apomorphy presents a fruitful and scientifically consistent alternative to this dilemma and that many cladists have systematically dismissed some major operational and philosophical difficulties with their methods and ignored some alternative or supplementary techniques which might achieve better results.
Neogastropod Phylogeny: A Molecular Perspective
TLDR
Investigation of the origin and evolution of the gastropod order Neogastropoda using an iterative, two gene approach to phylogeny reconstruction revealed similarities in genetic differences between orders of mammals, but are only slightly greater than differences between genera of penaeid shrimp.
Evidence for convergent evolution of brooding in a unique gastropod from Lake Tanganyika: anatomy and affinity of Tanganyicia rufofilosa (Caenogastropoda, Cerithioidea, Paludomidae)
TLDR
The anatomic redescription and reinterpretation of reproductive homologies presented here revealed several features from the midgut and kidney that are informative concerning the phylogeny of Lake Tanganyika gastropods and the evolution of viviparity among limnic Cerithioidea.
Details of gastropod phylogeny inferred from 18S rRNA sequences.
TLDR
The present study provides new molecular evidence for the monophyly of both Caenogastropoda and Euthyneura (Pulmonata and Opisthobranchia), making Prosobranchia paraphyletic, and suggests that Systellommatophora are not a monophyletic unit.
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1
2
3
4
5
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