XXIV. Stammbaum der amnionlosen Schädelthiere. 613 
Anura 
Plectognathi zer 
|  Salamandrina 
Lophobranchii | 
Et 1. ee] Labyrinthodonta Cryptobranchia 
Stichobranchii | 
Physoelisti EEE Perennibranchia 
Stegocephala Lissamphibia 
Enchelygenes Phractamphibia 
a 
Thrissogenes Amphibia 
Physostomi 
Teleostei 
Semaeopteri Dipneumones 
Fulerati 
Thrissopides RT 
Ctenodipterini 
CHR er Amiades 
Efuleri - 
Rhombiferi Zipneusk 
uzeu Crossopterygii (?) 
Sturiones 
Cephalaspides Cyeliferi 
| 
m 
Placodermi 
Tabuliferi 
Ganoides Rajacei 
öqnalacei | Chimaeracei 
Holocephali 
Plagiostomi 
| 
Selachi 
Pisces 
Amphirhina Cyclostoma 
Monorhina 
| 
Craniota 
Acrania 
