diversity of life

What kind of living beings are there, where do these beings live, how are the living beings related to one another?

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starfishes 124
sharks 25
bony fishes 609
lissamphibians 2
birds 2237
Crocodylus 1
geckos 8
lizards 46
snakes 94
crustaceans 4
insects 1
hydrozoans 33
countries 3155
habitats 3204
systematics 11316
- living beings 1
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- Asteroidea (starfishes) 131
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- Actinopterygii (ray-finned fishes) 661
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- Actinistia 1
- Coelacanthiformes (coelacanths) 1
- Rhipidistia 1
- Dipnomorpha 1
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- Tetrapodomorpha (tetrapodomorphs) 25
- Eotetrapodiformes 15
- Elpistostegalia 6
- Tetrapoda (land vertebrates) 1
- Evolution from fishes to amphibians 203
- Amphibia (amphibians) 1
- Stegocephalia 76
- crown tetrapods 48
- Batrachomorpha (batrachomorphs) 1
- Temnospondyli (temnospondyls) 13
- Eutemnospondyli 4
- Rhachitomi 108
- Dissorophoidea 3
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- Amphibamiformes 12
- Evolution from amphibians to lissamphibians 165
- Lissamphibia (lissamphibians) 9
- Reptiliomorpha (reptiliomorphs) 42
- Amniota (amniotes) 1
- Evolution from amphibians to the first reptiles 47
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- Sauropsida (sauropsids) 57
- Eureptilia 7
- Romeriida 9
- Diapsida (diapsids) 6
- Neodiapsida 363
- Evolution from the first reptiles to the saurians 464
- Sauria (saurians) 21
- Archosauromorpha 24
- Crocopoda 22
- Archosauriformes 23
- Eucrocopoda 13
- Crurotarsi 29
- Evolution from the saurians to the archosaurs 117
- Archosauria 5
- Avemetatarsalia 4
- Ornithodira 256
- Dinosauromorpha 1
- Dinosauriformes 9
- Dracohors 15
- Dinosauria (dinosaurs) 710
- Saurischia (saurischians) 546
- Theropoda 4
- Neotheropoda 61
- Averostra 86
- Tetanurae 22
- Orionides 75
- Avetheropoda 114
- Coelurosauria 14
- Tyrannoraptora 134
- Maniraptoromorpha 11
- Neocoelurosauria 26
- Maniraptoriformes 65
- Maniraptora 85
- Pennaraptora 81
- Paraves 37
- Eumaniraptora 182
- Averaptora 1
- Aves (birds) 1
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- Euavialae 1
- Avebrevicauda 6
- Pygostylia 14
- Ornithothoraces 36
- Euornithes 5
- Ornithuromorpha 21
- Ornithurae 15
- Evolution from archosaurs to modern birds 2666
- Neornithes (modern birds) 2378
- Pseudosuchia 7
- Suchia 15
- Paracrocodylomorpha 13
- Loricata 12
- Crocodylomorpha 31
- Crocodyliformes 6
- Mesoeucrocodylia 5
- Metasuchia 15
- Neosuchia 10
- Eusuchia 4
- Evolution from archosaurs to crocodilians 121
- Crocodylia (crocodilians) 4
- Lepidosauromorpha 5
- Lepidosauria (lepidosaurs) 1
- Rhynchocephalia 3
- Sphenodontia 1
- Eusphenodontia 3
- Neosphenodontia 13
- Sphenodontidae 3
- Sphenodon (tuataras) 1
- Evolution from the saurians to the tuatara 32
- Sphenodon punctatus (tuatara) 1
- Evolution from the saurians to the squamates 106
- Squamata (squamates) 268
- Testudinata (turtles) 13
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- Protostomia (protostomes) 1
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- Panarthropoda 1
- Arthropoda (arthropods) 1
- Mandibulata (mandibulates) 1
- Pancrustacea 1
- Crustacea (crustaceans) 12
- Hexapoda (hexapods) 1
- Ectognatha 1
- Insecta (insects) 16
- Cnidaria (cnidarians) 1
- Medusozoa (medusozoans) 1
- Hydrozoa (hydrozoans) 40

7579 photos

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systematics 1
- Evolution from fishes to amphibians 1

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Home / systematics / Tetrapoda (land vertebrates) 1

The first Tetrapoda (land vertebrates) were Amphibia (amphibians).

The Amphibia (amphibians) still lived mainly in the water and only occasionally went ashore.

The Amphibia (amphibians) still laid their eggs like fish in water.

Tetrapoda (land vertebrates)