Phylogenetics and systematics of the subfamilies Cheirurinae and Deiphoninae (Trilobita).

ABSTRACT: Cheiruridae is one of the most diverse families of trilobites known from the Ordovician with 453 species assigned. Within Cheiruridae eight subfamilies (Acanthoparyphinae, Cheirurinae, "Cyrtometopinae", Deiphoninae, Eccoptochilinae, Heliomerinae, Pilekiinae, and Sphaerexochinae) have historically been recognised. Insights about the evolution of the family and the relationships within and between subfamilies have been published. However larger scale phylogenetic hypotheses are needed in order to explore the monophyly, the basal structure, the deep nodes and the relationships of the subfamilies. Cheirurinae, Deiphoninae and "Cyrtometopinae" have historically been defined by various morphological features (e.g., anteroposterior constriction of the thoracic pleura, pleural furrow morphology, p

SUBMITTER: Perez-Peris F 

PROVIDER: S-EPMC11652639 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature