Primitive bird - Wildlife in the Habitats

Primitive bird - Animals in the Habitats, and Biodiversity

Classified animal picture guide. Highlighting the link

of species shows the images, and clicking a link shows Evolutionary Tree.

The followings are extinct primitive birds belonging to Sauropsida and Aves. The primitive birds evolved from dinosaurs in reptiles, and lived from Jurassic to Cretaceous. The explanation in brackets is the ages they lived in extinct species. Note that Mya is million years ago. For example, "48.6～40.4 Mya" shows a range between 48.6 and 40.4 million years ago. The time range is shown in the Geological Time Table. The followings are a part of the Evolutionary Tree.

Kingdom Animalia

Phylum Chordate

Subphylum Vertebra

Infraphylum Gnathostomata (Jawed vertebrates)

Class Sauropsida (Non mammal-like reptiles)

Subclass Diapsida (Two arches near the temples)

Infraclass Archosauromorpha (Crocodiles, Pterosaurs, Dinosaurs)

Clade Ornithodira (Pterosaurs, Dinosaurs)

Order Saurischia (Dinosaurs)

Suborder Theropoda (Carnivorous bipedal dino)

Infoorder Oviraptorosauria (Feathered dinos; 125～65.5 Mya)
Bird's relative dino Caudipteryx (130～112 Mya), Protarchaeopteryx (130～112 Mya)

Infoorder Deinonychosauria (Bird's relative dino; 167.7～65.5 Mya)

		Bird's relative dino	Sinornithosaurus (125～112 Mya), Microraptor (125～112 Mya), Deinonychus (125～99.6 Mya), Unenlagia (89.3～85.8 Mya), Velociraptor (85.8～70.6 Mya), Rahonavis (70.6～65.5 Mya)
		Primitive bird	Anchiornis (167.7～150.8 Mya), Xiaotingia (167.7～150.8 Mya), Archaeopteryx (150.8～145.5 Mya), Wellnhoferia (150 Mya)

Clade Avialae (228～140.2 Mya)
Primitive bird Protoavis (210 Mya), Epidendrosaurus (167.7～150.8 Mya)

Class Aves
- Subclass Archaeornithes (Most primitive bird; 155.7～112 Mya)
  Primitive bird Changchengornis (145.5～125 Mya), Eoconfuciusornis (136.4～125 Mya), Confuciusornis (125～112 Mya)
- Subclass Enantiornithes (Opposite birds; 140.2～65.5 Mya)
  Primitive bird Iberomesornis (130～125 Mya), Noguerornis (130～125 Mya), Protopteryx (130～112 Mya)
  - Superorder Enantiornithes (Advanced Enantiornithes; 130～65.5 Mya)
    Primitive bird Sinornis (125～112 Mya), Nanantius (112～99.6 Mya), Neuquenornis (85.8～83.5 Mya)
- Subclass Ornithurae (Primitive and advanced features;145.5～65.5 Mya)
  Primitive bird Jeholornis (125～112 Mya), Jixiangornis (125～112 Mya), Omnivoropteryx (125～112 Mya), Sapeornis (125～112 Mya), Apsaravis (83.5～70.6 Mya), Hollanda (83.5～70.6 Mya)
- Subclass Hesperornithes (Prehistoric aquatic birds)
  Primitive bird Parahesperornis (89.3～83.5 Mya), Baptornis (89.3～70.6 Mya; Swimming bird with fin), Hesperornis (89.3～65.5 Mya; １．５m), Potamornis (70.6～65.5 Mya)
- Subclass Ichthyornithes (Prehistoric sea birds)
  Primitive bird Ichthyornis (99.6～70.6 Mya), Patagopteryx (85.8～83.5 Mya)
- Subclass Neornithes (Modern birds; 89.3 Mya～)