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Table 3 Ancestral character state reconstructions for paraphyletic Cycloneuralia topology

From: Ancestral morphology of Ecdysozoa constrained by an early Cambrian stem group ecdysozoan

Character

Total group Edysozoa (PP)

Crown group Ecdysozoa (PP)

Scalidophora (PP)

Panarthropoda + Nematoida (PP)

Panarthropoda (PP)

Present in Acosmia ?

Terminal mouth

0 = 0.024837

1 = 0.975163

0 = 0.000858

1 = 0.999142

0 = 0.000128

1 = 0.999872

0 = 0.000288

1 = 0.999712

0 = 0.001408

1 = 0.998592

Yes

Pharyngeal armature

0 = 0.962564

1 = 0.037436

0 = 0.082954

1 = 0.917046

0 = 0.002036

1 = 0.997964

0 = 0.068972

1 = 0.931028

0 = 0.022113

1 = 0.977887

No

Circumoral structures

0 = 0.959800

1 = 0.040200

0 = 0.021808

1 = 0.978192

0 = 0.000288

1 = 0.999712

0 = 0.006146

1 = 0.993854

0 = 0.010114

1 = 0.989886

No (spines possibly present)

Annulated trunk

0 = 0.027979

1 = 0.972021

0 = 0.002343

1 = 0.997657

0 = 0.011783

1 = 0.988217

0 = 0.000535

1 = 0.999465

0 = 0.000203

1 = 0.999797

Yes

Scalid covered introvert

0 = 0.999838

1 = 0.000162

0 = 0.989892

1 = 0.010108

0 = 0.003788

1 = 0.996212

0 = 0.999403

1 = 0.000597

0 = 0.999986

1 = 0.000014

No

Paired sclerites

0 = 0.994518

1 = 0.005482

0 = 0.994662

1 = 0.005338

0 = 0.993516

1 = 0.006484

0 = 0.995261

1 = 0.004739

0 = 0.957987

1 = 0.042013

No

  1. Values of ancestral character state reconstructions. 0 = absence of character, 1 = presence of character, PP = posterior probability