Phylum Chordata
graph TB
A[Phylum Chordata]
A --> B1[Subphylum Vertebrata]
A --> B2[Subphylum Urochordata]
A --> B3[Subphylum Cephalochordata]
B1 --> C1[Class Mammalia]
B1 --> C2[Class Aves]
B1 --> C3[Class Reptilia]
B1 --> C4[Class Amphibia]
B1 --> C5[Class Osteichthyes]
B2 --> D1[Class Ascidiacea]
B3 --> E1[Class Leptocardii]
Division Agentha
graph TD;
A[Division Agentha] --> B((Biology));
B --> C{Mermaid Version 9.3.0};
C --> D[Cell Biology];
C --> E[Genetics];
C --> F[Ecology];
C --> G[Evolutionary Biology];
Division Gnathostomata
graph TB
A[Division Gnathostomata]
B[Subdivision 1]
C[Subdivision 2]
D[Subdivision 3]
E[Subdivision 4]
F[Subdivision 5]
A --> B
A --> C
A --> D
A --> E
A --> F
B -->|...| G[...]
C -->|...| H[...]
D -->|...| I[...]
E -->|...| J[...]
F -->|...| K[...]
Class Chondrichthyes
graph TB
A[Class Chondrichthyes]
A --> B[Subclass Elasmobranchii]
B --> C[Superorder Selachimorpha (Sharks)]
B --> D[Superorder Batoidea (Rays and Skates)]
A --> E[Subclass Holocephali (Chimaeras)]
Class Osteichthyes
graph TB
O[Class Osteichthyes]
A[Subclass Actinopterygii]
S[Subclass Sarcopterygii]
O --> A
O --> S
A --> AA[Superorder Acanthopterygii]
A --> AO[Superorder Ostariophysi]
S --> SL[Order Lungfishes]
S --> SC[Order Coelacanths]