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Acanthostega

Acanthostega

2023-07-18 Snargl 1 minute 12 seconds

What kind of animal is Acanthostega?

Lizard with a weird face and a long tail standing on a rock in a forest with green plants
Strange creature with a weird look on its face and legs
Large alligator with a large eye in the middle of a forest with trees and grass on both sides
Strange looking orange creature with big eyes and a large mouth
Green alien with a huge head and arms holding a knife and a fork in its mouth and a huge head with a huge body

Acanthostega was an extinct animal that lived about 365 million years ago, during the late Devonian period.

It is considered one of the first vertebrates to have recognizable limbs, and a transitional form between lobe-finned fishes and land-dwelling tetrapods.

Acanthostega had a fish-like body, with scales, fins, and a long tail.

It also had internal gills that were covered by a flap of skin, and lungs that allowed it to breathe air.

However, it was not well adapted for walking on land, as its limbs were weak and lacked wrists, elbows, and ankles.

It had eight digits on each hand, and an unknown number on each foot, which were connected by webbing.

Its shoulder and forelimb were similar to those of fish, and its ribs were too short to support its chest out of water.

Acanthostega is thought to have lived in shallow freshwater habitats, such as rivers, lakes, and swamps.

It probably used its limbs to paddle in the water, or to grip onto aquatic plants.

It may have also crawled onto land for short periods of time, perhaps to escape predators or to find new food sources.

It fed on small animals, such as worms, insects, and crustaceans, using its sharp teeth and strong jaws.

Acanthostega is an important fossil for understanding the evolution of tetrapods, as it shows many features that are intermediate between fish and land animals.

It also reveals the diversity and experimentation that occurred during the Devonian period, when many different kinds of vertebrates with limbs emerged.

Acanthostega is closely related to another early tetrapod, Ichthyostega, which had more robust limbs and a stronger backbone.

Together, they represent the ancestors of all modern amphibians, reptiles, birds, and mammals.

Example of the color palette for the image of Acanthostega

Picture with primary colors of AuroMetalSaurus, Dark green, Magic mint, Dark cyan and Dark slate gray
Top 5 color shades of the illustration. Arranged in descending order of frequency of occurrence (first - more often, last - more rare).
See these colors in NCS, PANTONE, RAL palettes...
NCS (Natural Color System)
NCS S 4010-B30G
NCS S 7020-B70G
RAL Classic
RAL 9023
RAL 6007
RAL 6019
RAL 5018
RAL 6028
RAL Design
RAL 180 50 05
RAL 170 20 25
RAL 190 80 15
RAL 180 30 15
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The images you see on this page have been generated by AI - they are not real images of Acanthostega, but they are great nonetheless! :)
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