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Автор: valentint Категория: Политика
Прочетен: 255429 Постинги: 176 Коментари: 17
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Lobe-finned fish (Sarcopterygii)

The Sarcopterygii, or lobe-finned fishes, is a clade containing the coelacanths, lungfishes, tetrapods, and their fossil relatives, including the osteolepiformes and panderichthyids. They are the sis...
Категория: Забавление
Прочетен: 339 Коментари: 0 Гласове: 1
Последна промяна: 24.04 22:00
Dinichthys

Dinichthys herzeri is an extinct, giant, marine arthrodire placoderm from the Late Devonian (Famennian stage) of Ohio and Tennessee. It was comparable in size, shape, and ecological role to the better-known Dunkleosteus. Orig...
Категория: Забавление
Прочетен: 231 Коментари: 0 Гласове: 1
Последна промяна: 24.04 22:06
Placoderms (Placodermi)

Placoderms are arguably the most diverse groups of the early jawed fishes. They first appeared in the Early Silurian and diversified dramatically during the Devonian, but became extinct at the end of that p...
Категория: Забавление
Прочетен: 336 Коментари: 0 Гласове: -2
Последна промяна: 24.04 22:10
Fish

Compared to dinosaurs, mammoths and saber-toothed cats, fish evolution may not seem all that interesting — until you realize that if it weren"t for prehistoric fish, dinosaurs, mammoths, and saber-toothed cats would nev...
Категория: Забавление
Прочетен: 350 Коментари: 0 Гласове: 0
Последна промяна: 24.04 22:17
Eugenedonts (Eugeneodontida)
The largest eugenedont is Helicoprion at 12 metres (41ft) long
Up until 2013, the only known fossils of this genus on record were their teeth, which were arranged in a "tooth-whorl" strongly reminiscent o...
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Прочетен: 479 Коментари: 0 Гласове: 0
Последна промяна: 24.04 22:24
Alopias grandis may have reached lengths of 13 m (42 ft)
Alopias grandis was an absolutelely enormous  iocene thresher shark. Normal thresher sharks have teeth that are around 10 mm long, the teeth of Alopias grandis are stunning...
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Прочетен: 463 Коментари: 0 Гласове: 0
Последна промяна: 25.04 18:17
An extinct megatoothed shark, C. megalodon is by far the biggest shark known.
This giant shark reached a total length of more than 16 metres (52 ft).C. megalodon may have approached a maximum of 20.3 metres (67 ft) in total length and 1...
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Прочетен: 389 Коментари: 0 Гласове: 0
Последна промяна: 26.04 03:13
Sharks

Tiger Shark,Scapanorhynchus texanus (extinct),Bigeye thresher shark,Shortfin mako shark,Hybodus (extinct),Oceanic whitetip shark,Carcharocles Chubutensis (extinct),Stethacanthus (extinct),Leptostyrax macrorhiza (extinct),Sandbar ...
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Прочетен: 586 Коментари: 0 Гласове: 0
Последна промяна: 29.04 20:04
Anthracosauria

1. Pteroplax 2. Archeria 3. Pholiderpeton 4. Anthracosaurus 5. Diplovertebron
Категория: Забавление
Прочетен: 1323 Коментари: 0 Гласове: 0
Последна промяна: 30.04 20:03
Amphibians (Amphibia)

Amphibians were the first group of vertebrates to develop limbs and to be able to leave the water to conquer the land. Even if they are seen as simple and primitive animals by most people, amphibians show a w...
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Прочетен: 2817 Коментари: 0 Гласове: 0
Последна промяна: 30.04 20:06
Eupelycosaurs

1. Cotylorhynchus 2. Aerosaurus 3. Dimetrodon 4. Mesenosaurus 5. Edaphosaurus
Категория: Забавление
Прочетен: 1090 Коментари: 0 Гласове: 0
Последна промяна: 30.04 20:42
The largest seems to be the freshwater turtle Stupendemys, with an estimated total carapace length of more than 3.3 m (11 ft) and weight of up to 1,814–2,268 kg (3,999–5,000 lb

Stupendemys is a prehistoric genus of freshwa...
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Прочетен: 1491 Коментари: 0 Гласове: 0
Последна промяна: 29.04 20:47
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Автор: valentint
Категория: Политика
Прочетен: 255429
Постинги: 176
Коментари: 17
Гласове: 14
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