Figure 8 in A Heterolepidoderma and Halichaetoderma gen. nov. (Gastrotricha: Chaetonotidae) riddle: integrative taxonomy and phylogeny of six new freshwater species from Central Europe

Figure 8. SIMMAP reconstruction of spine morphologies in chaetonotids based on 10 000 stochastic character maps simulated under the SYM model. Spines most likely belonged to the ground pattern of the CDN clade. They were lost in the last common ancestor of the Halichaetoderma + Halichaetonotus clade and at least two times convergently within the Heterolepidoderma s.l. clade. Relative proportions of character states were mapped onto the best scoring ML tree.