Answer Happy

On the phylogeny on the next page, mark where the following synapomorphies evolve. Feel free to mark just the number at the appropriate place.
1-Vertebrae
2-Internal bony skeleton
3-Dentine-based teeth
4-True jaws
5-Fin rays (lepidotrichia)
6-Claspers
7-Protocercal tail changes to heterocercal tail
8-Heterocercal tail changes to abbreviated heterocercal tail
9-Homocercal tail
10-Elasmoid scales
11-Leptocephalus larva
12-Primary bite occurs between tongue (glossohyal) and roof of mouth (parasphenoid)
13-Lungs/gasbladder (remember from FW315 that these are homologous organs)
Chordata Vertebrata Gnathostomata Osteichthyes Actinopterygii Actinopteri O Neopterygii Chondrichthyes Elasmobranchii Teleostei Osteoglossocephali Cyclostomata Batoidea 6 Selachii Sarcopterygii Elopomorpha Carcharhiniformes drostei Cephalochordata Anguilliformes Myxiniformes Holostei Petromyzontiformes O Chimaeriformes ● Rajiformes mniformes O Torpediniformes Rhinopristiformes Myliobatiformes O Carcharhinidae Squaliformes Lamnidae Cetorhinidae Dipnotetrapouas Sphyrnidae Coelacanthiformes Tetrapodomorpha O Ceratodontidae ● Lepidosirenidae Polypteriformes Acipenseridae Polyodontidae ● Amiiformes Lepisosteiformes ● Elopiformes Albuliformes O Anguillidae Nemichthyidae Congridae Muraenidae O Hiodontiformes Pantodontidae Osteoglossomorpha Osteoglossifor ssiformes ● Arapaimidae Osteoglossidae Mormyridae Notopteridae Clupeocephala