Was the ancestral panarthropod mouth ventral or terminal?. (March 2019)

• Record Type: Journal Article
• Authors: Nielsen, Claus
• Is Part Of: Arthropod structure & development. Volume 49(2019)
• Page Start: 152
• Page End: 154
• Publication Date: 2019-03
• Subjects: Arthropoda -- Tardigrada -- Nematoda -- Evolution -- Ontogeny; Arthropoda -- Morphology -- Periodicals; Arthropoda -- Anatomy -- Periodicals; Arthropoda -- Cytology -- Periodicals; Arthropods -- growth & development -- Periodicals; 595
• DOI: 10.1016/j.asd.2018.11.002
• Languages: English
• ISSNs: 1467-8039

Abstract

Abstract: It has recently been suggested that the panarthropod mouth was ancestrally terminal, based on the assumption that the ancestral tardigrade had a terminal mouth and on the observations of a terminal mouth in adults of some stem-group fossils. This is shown to be unlikely, and it is concluded that the ancestral panarthropod had a ventral mouth. Highlights: The ancestral panarthropod had a ventral mouth.