Precise occlusion and trophic niche differentiation indicate specialized feeding in Early Devonian jawed vertebrates

• 主要作者: Stephanie A. Blais (Author)
• 格式: 图书
• 出版: Canadian Science Publishing, 2017-06-01T00:00:00Z.
• 主题: article
• 在线阅读: Connect to this object online.

Acanthodians may represent a paraphyletic assemblage of stem chondrichthyans, stem osteichthyans, stem gnathostomes, or some combination of the three. One of the difficulties in determining the phylogenetic affinities of this group of mostly small, spiny fishes is that several subgroups of acanthodi...