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CephalaspisInfobox
Cephalaspis
Vital statistics
Attributes Armoured head; sensors on head; detritivorous; anadromous
Diet Detritivorous
Fossil finds Worldwide
Temporal fossil range Silurian to Devonian
425 to 385mya
Other names
Production information
Notable individuals
TV appearances Walking with Monsters: Water Dwellers
Book appearances
This is Cephalaspis. She's a peaceful grazer who sucks up algae from her jawless mouth, but she's also developed a tough protected head and thick scales.

Walking with Monsters: Water Dwellers

Cephalaspis was a jawless, detritivorous fish from the Silurian and the Devonian.

Physical appearance and biologyEdit

Cephalaspis had a heavy, armoured head equipped with sensors used to detected vibrations in the water.  It was also jawless, with its mouth positioned at the bottom of its head facing the floor.  It also had a powerful tail, perfect for propelling itself through the water.  It had two, black eyes near the top of its head.

Behaviour and traitsEdit

Cephalaspis was a group animal that lived in shoals. They would often separate to individually find food. They were detritivorous, meaning that they fed on any small scraps of food on the sea floor. They practiced this lifestyle due to the fact that they were jawless fish so therefore, they couldn't effectively hunt.

The sensors of Cephalaspis were very sensitive and could pick up the smallest vibrations. This survival mechanism also aided in avoiding predators like the sea scorpion Brontoscorpio.

Cephalaspis' head was heavily armoured and was top heavy. Although being heavily defended, it also hindered its swimming abilities as its head couldn't be supported properly whilst swimming. So to combat this issue, Cephalaspis would constantly rest in small intervals. However, this too served as a handicap. In the time Cephalaspis would rest, if it were being chased by a predator, the predator would easily be able to gain on the fish. However, if it detected a deadlier threat or needed to migrate, it would swim away quickly without resting.

Cephalaspis were anadromous fish. Annually, vast amounts of pregnant females would swim to their spawning grounds and would then lay their eggs. However, the journey is often treacherous as predators like Brontoscorpio would often follow them there or would wait for them as it was an annual event.

In Walking with MonstersEdit

Water DwellersEdit

A Cephalaspis was foraging for food on the sea floor but it was subsequently pursued by a Brontoscorpio. Fortunately for the fish, it managed to escape its attacker. Soon afterwards, a small group of Cephalaspis was chased by another Brontoscorpio. After that, another scorpion chased a Cephalaspis. As the animal constantly rested, the carnivore gained on its prey. But, then, suddenly, the Cephalaspis swam off as the Brontoscorpio was killed by a Pterygotus.

Later, a large shoal of Cephalaspis swam to their spawning grounds.  However, as they reached their destination, many were preyed upon by several Brontoscorpio.  After the remaining fish laid their eggs, they returned to their regular domain.

Behind the scenesEdit

List of appearancesEdit

Palaeontological inaccuraciesEdit

  • There is no fossil evidence that Cephalaspis lived during the Silurian.
  • There is no evidence that Cephalaspis indulged in anadromous behaviour.

Notes and referencesEdit

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