Dinosauria Cladogram

Introduction

Jeff Poling

INTRODUCTION

The DOL Dinosauria Cladogram is one possible cladogram for the dinosauria. It is the result of the work of T. Mike Keesey, available in greater detail at http://dinosaur.umbc.edu, translated, by me, into the format shown here. As with all cladograms, some of the information may be subject to serious disagreement among paleontologists. Mr. Keesey makes every attempt to keep his information up-to-date, so at the very least The DOL Dinosauria Cladogram should always give the reader an idea of the current thought about dinosaur relationships.

Each detail cladogram is followed by a list of the nodes in the cladogram and the dinosaurs considered to belong to each node. Some species names are preceded by a question mark. This convention denotes that paleontologists feel there is uncertainty regarding the animal's placement at that node and that this is the highest node at which the animal can be placed with any certainty at all. For example, a species may be shown belonging to the node Sauropoda with a question mark. This means that paleontologists know the dinosaur is a sauropod, but they don't know what kind of sauropod.

Your browser must be capable of utilizing imagemaps to view the detail cladograms. Each detail imagemap will show part of the overall cladogram. Click on any red circle to view the part of the cladogram that is attached to that particular node. Backtracking through the cladogram is accomplished by clicking on the red circle at the bottom of the cladogram you advanced to. The green circles are there only to make node text easier to read.

KEY

• [i. s.] = [incertae sedis]
• * = type species of a multi-species genus (for a uni-species genus, the species listed is the type species)