Archeanthostoma

Anthostoma

**Archeanthostoma**

The ***Archeanthostoma*** ("first anthostomes", or lit. "first flower mouths") were the first species of the Anthostoma phylum of animals on TIRA 292b.

## Description

*Archeanthostoma* emerged around 4005ma. They were the first clade of Anthostomes to develop and have survived into the present day.

Adult *Archeanthostoma* possess a ring of feather-like feeding appendages used to gather food and oxygen from the water. Each of these appendages are tipped with vibration-sensitive cells and three sensitive eyes. Their main body is encased in a shell comprised of calcium sulfate, and their feeding arms can be retracted into this shell as a means of defense.

### Life Cycle

Like all marine Anthostomes, *Archeanthostomes* breed using broadcast spawning, launching massive amounts of gametes into the water. *Archeanthostoma* larvae serve as zooplankton, although they can use their underdeveloped feeding arms to alter their orientation in their environment. Once they mature, the larvae settle on the sea bed and metamorphose into adults, often forming large Reefs of sessile anthostomes. These reefs serve as homes for creatures such as Remipterida and Trichopoda.

## Gallery

Broadcast spawing of Archeanthostomes.Anthostoma larvaea anthostome colony made by JFA Tachypod encounters 2 lone Archeananthostoma
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												* File:StenopsidaeEvo.pngArchestenopsidae
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 † = Extinct