Xenoeuly kirbyi

Xenoeuly kirbyi is an extinct organism from Almaishah, it is typical of what is assumed to be the ancestor of all other members of its phylum. Xenoeuly kirbyi lived about 480 million years ago.

Basic Information

Anatomy

Xenoeuly kirbyi was a segmented creature with a bilateral symettry. Each segment is more or less identical, containing a set of ventral paired gill fronds, lateral swimming appendages, and dorsal eyes. Inside the coelum exists a digestive tract, an open circulatory system using haemocyanin, paired gonads, and ventral nephridia. There is a ganglion in the anterior end of each segment which then sends nerves down the lateral side to connect to each appendage and then back to the next segment. The last segment contains posterior anus, through which gametes and waste are expelled.

Genetics and Reproduction

Xenoeuly kirbyi were sequential hermphrodites.

Dietary Needs and Habits

Xenoeuly kirbyi fed by ingesting sediment from the ocean floor and digesting microbes and small burrowing fauna, then passing the inorganic material and undigested portions of its meals.

Additional Information

Perception and Sensory Capabilities

The eyes of Xenoeuly kirbyi are primitive and have poor resolution, they can tell whether there is light and which direction it is coming from, but little else. The skin is covered in nerves that allow the creature to sense pain, pressure, and temperature.

EXTINCT

Genetic Descendants

• Barsnail
• Cage-Gill Worm
• Gulper
• Hornsnail
• Infirmignathid
• Kirbirb
• Monoculus
• Probosignathid
• Pudgeworm
• Rock-Eater Fish
• Safiyaziwa
• Sea Sweeper
• Shieldneck
• Sleeping Fish
• Tigersnail
• Wyrm Fish
• Xenocarid
• Yggrina
• Ypresi

Scientific Name

Xenoeuly kirbyi

Origin/Ancestry

Xenosegmenta

Average Length

5cm/2"