Ontology highlight
ABSTRACT:
SUBMITTER: Hirano T
PROVIDER: S-EPMC6828811 | biostudies-literature | 2019 Nov
REPOSITORIES: biostudies-literature
Scientific reports 20191104 1
Other than hard bones and shells, it is rare for soft tissues to fossilize, but occasionally they are well-preserved in amber. Here, we focus on both modern and fossilized species of the land snail superfamily Cyclophoroidea. Phylogenetic relationships within the Cyclophoroidea were previously studied using extant species, but timing of divergence within the group remains unclear. In addition, it is difficult to observe morphological traits such as the chitinous operculum and periostracum of fos ...[more]