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Taxonomy Tournament: Invertibrates
Pterobranchia. This class is made up of small worm-shaped sessile marine filter feeders that life in secreted tubes.
Tardigrada. This phylum is made up of tardigrades, also known as water bears, eight-legged segmented micro-animals. They're among the most resilient animals, able to survive high and low extremes in temperature and pressure.
Which clade of animals is better?
Pterobranchia
Tardigrada
Show results
today's invertebrates................anthobothrium altavelae, vanadis antarctica and yoda demiankoopi!
three of them!!! they call themselves the worm brothers and they work for That One Company That Makes Woods And Furmitures And Stuff™!
all three of these fine gents have a strange obsession with building bridges, and they will always make excuses or horribly twist words to find a way to build one, no matter how unnecessary it would be. they also build at a ludicrous speed, so once they've decided that they're going to make one there's nothing you can do about it
they'll build their treasured bridges anywhere! one time they built one on a guy's face! and another time they managed to put one on a baby before it was even conceived!!
their building is so impressive that you can't even get mad at them for it, even if it ruins your life by pobbling near your house or your 📵⚠️↪️🔆⚕️⚕️💱 and causing it to explode¡
glorpiness rating: lady you are school and dirt for loosing
anthobothrium illustration from this paper, vanadis photograph from this blog post and yoda from this other blog post I think? idk I'm in a rush against time to post these guys before I sleep and forget
I have no idea what that blob next to anthobothrium altavelae is btw
also vanadis has a really freaky evertable proboscis. you should definitely look it up
Taxonomy Tournament: Invertibrates
Pterobranchia. This class is made up of small worm-shaped sessile marine filter feeders that life in secreted tubes.
Enteropneusta. This class is made up of acron worms, which mostly live in the sediment of the seabed, as detritivores or filter feeders.
Which clade of animals is better?
Pterobranchia
Enteropneusta
Show results
The fossilised remnants of tube-like 'dwellings' which housed a primitive type of prehistoric sea worm on the ocean floor have been identified in a new study. The long, perforated tubes may have looked like narrow chimneys reaching up from the sea bed, and were made by a creature called Oesia, which lived a solitary existence inside them about 500 million years ago.
Let me introduce you to graptolites. These odd little prehistoric creatures were colonies of tiny marine animals which formed protective cup-like structures around their bodies and filter-fed on microscopic plankton. They're classified as hemichordates, and their closest living relatives are a similar member of that group called pterobranchs. They appeared in the fossil record between about 490 and 320 million years ago, and came in a wide range of shapes and sizes. There were single rows, double rows, branches, spirals, forks, and even net-like forms. The earliest types lived attached to the sea floor, but later ones floated around freely near the surface of the ocean and could reach lengths of up to 1.5m (~5ft). Some may have attached themselves to seaweed and floating debris, others are thought to have dangled from their own little bubble-like flotation rafts. Their remains are so numerous and widespread that they're very useful as "index fossils", allowing paleontologists to precisely date the age of the rocks they're found in.
