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#sistergroup — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #sistergroup, aggregated by home.social.

  1. #Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
    The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
    © #StefanFWirth Berlin 2025

    Reference

    Sumner-Rooney et al. (2015):
    doi.org/10.1111%2Fede.12164

  2. #Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
    The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
    © #StefanFWirth Berlin 2025

    Reference

    Sumner-Rooney et al. (2015):
    doi.org/10.1111%2Fede.12164

  3. #Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
    The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
    © #StefanFWirth Berlin 2025

    Reference

    Sumner-Rooney et al. (2015):
    doi.org/10.1111%2Fede.12164

  4. #Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
    The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
    © #StefanFWirth Berlin 2025

    Reference

    Sumner-Rooney et al. (2015):
    doi.org/10.1111%2Fede.12164

  5. #Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
    The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
    © #StefanFWirth Berlin 2025

    Reference

    Sumner-Rooney et al. (2015):
    doi.org/10.1111%2Fede.12164

  6. Sister group (Evolutionary biology 🧬)

    In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative of another given unit in an evolutionary tree.

    en.wikipedia.org/wiki/Sister_g

    #SisterGroup #Taxa #Phylogenetics #EvolutionaryBiology #BiologicalClassification