D. J. Scott
[Last Update: June 6th, 2018]

Parent Group

Chordata (“Chordates”)

Sister Groups

Tunicata (“Urochordates”)
Cephalochordata (“Lancelets”)

Daughter Groups

Gnathostomata (“Jawed Fish”)
Agnatha (“Jawless Fish”)


Articles

Evolution: Reptiles to Mammals
The evolutionary transition from synapsid reptiles to mammals.

Convergence or Introgression?
Could the mosaic of characteristics seen in fossil and extant hominids be evidence of past hybridization?

“Through a Glass, Darkly”
Dinosaurian hominids.

Subsections

The Hominid Homepage
For all your filthy monkey-man needs.

Lists

Fossil Hominid Specimens


About


About this Website
About the Author
Services & Rates
Contact Me

Donate!
D. Jon Scott’s WebsiteSciencePhysicsChemistryBiologyEukaryologyZoology ► Ichthyology

Vertebrates

We’re Boned.
Copyright © 2017 by Dustin Jon Scott
[Last Update: June 6th, 2018]

Introduction

Paragraph



Classes


Class Agnatha (“jawless fish”)
Class Chondrichthyes (“cartilaginous fish”)
Class Osteichthyes (“bony fishes”)
Class Amphibia (“amphibians”)
Class Reptilia (“reptiles”)
Class Aves (“birds”)
Class Mammalia (“mammals”)

Subphylum Vertebrata
Palaeospondylus
Superclass Agnatha or Cephalaspidomorphi (“jawless fish”)
Infraphylum Gnathostomata (“Jawed Fish”)
Class Placodermi (“armored fishes”)
Class Chondrichthyes (“cartilaginous fishes”)
Class Acanthodii (“spiny sharks”)
Superclass Osteichthyes (“bony vertebrates”)
Class Actinopterygii (“ray-finned fish”)
Class Sarcopterygii (“lobe-finned fish”)
Class Amphibia (“amphibians”)
Class Synapsida (“mammals”)
Class Sauropsida (“reptiles”)



Infraphyla


Infraphylum Gnathostomata (“Jawed Fish”)
Class Placodermi (“armored fishes”)
Class Chondrichthyes (“cartilaginous fishes”)
Class Acanthodii (“spiny sharks”)
Superclass Osteichthyes (“bony vertebrates”)
Class Actinopterygii (“ray-finned fish”)
Class Sarcopterygii (“lobe-finned fish”)
Class Amphibia (“amphibians”)
Class Synapsida (“mammals”)
Class Sauropsida (“reptiles”)



Superclasses


Superclass Agnatha or Cephalaspidomorphi (“jawless fish”)
Infraphylum Gnathostomata (“Jawed Fish”)
Class Placodermi (“armored fishes”)
Class Chondrichthyes (“cartilaginous fishes”)
Class Acanthodii (“spiny sharks”)
Superclass Osteichthyes (“bony vertebrates”)
Class Actinopterygii (“ray-finned fish”)
Class Sarcopterygii (“lobe-finned fish”)
Class Amphibia (“amphibians”)
Class Synapsida (“mammals” and their ancestors)
Class Sauropsida (“reptiles”, including birds)