Question

explain subclass archaeonithes??

Answer 1

Hey..mate here is yur ans...
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⏩ Archaeonithes ⏪

⏩ They all are jurassic/ Primitive birds. ➡ They all are ancestors of true fishes beacuse birds of these class found in jurassic period but jow they all are extinct

⏩ They have Weak Flight muscles.➡ Their flight muscles are weak beacuse earlier all have found their food easily and earlier they also not have any problem of it's opponent like earlier birds can't fight each other for food or other needs so birds have no need to flight so Thier flight muscles are weak.

⏩ Keel absent. keel it is also known as breastbone and crania these bone attach to the flight muscles but their flight muscles are weak so keel is absent in these birds.

⏩ Long tail ( Lizzard like ). All these birds have tail like lizzard tail is long.

⏩ Tail with two lateral rectrices.

⏩ Caudal vertebrae present.➡ caudal vertebrae support birds legs they are found near Their hips they help in locomotion.

⏩ Wings with claws.

⏩ Teeth in beak.

⏩ Scales on back.

⏩ They are connective link between Reptiles and Aves.

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HOPE IT HELPS U✌

Answer 2

Hey mate ........

here is ur answer........

Ans))) Archaeonithes subclass features.........

● They are the connecting links between Aves and Reptiles...

● They had an evolutionary relationships with the birds and now they are extinct and could not be found , only the traces are present.

● They had weak bones and muscles due to the lack of nutrients as in earlier times , there was no variety.

● As they are the connecting links between repltiles and aves they had a long tail like a lizard.

● Teeths are present inside the beak and some of them may had scales.

hope it helps

be brainly