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Description
Took a lot of work but finally completed a new addition to my Pangea Ultima project. All of these creatures are various marine life that exist within the Inland Sea. To summarize, the majority of the Inland Sea’s inhabitants are descendants of bristle mouth fish and krill (two of the most massive biomasses in the animal kingdom). The bristle mouths split into two major groups, the Filtermouths and the more diverse and predatory Jaggedmouths, while the krill evolved into a new group of crustaceans called Krillfish, which are large are more freeswiming than previous crustaceans. There are also a few copepods, sharks, and one of the last reptile species on Earth. There’s a lot of species to go over so I’ll get started:

Common Filtermouth: The most numerous species of their group, common filter mouths act as prey for most medium sized predators in the Inland sea. Like other species in their group, the teeth of Filtermouths are designed for filter feeding though they can also catch smaller organisms.

Grazing Copepod: a giant among Copepods, this species grazes on algae that grow on submerged rocks close to the shoreline.

Carpet Krillfish: a relatively primitive Krillfish species, Carpet Krillfish inhabit the sea floor and feed on bits and carcasses that sink down to the bottom.

Leech Shark: small descendants of cookiecutter sharks, Leech Sharks latch on to the softer areas of larger organisms to feed on their blood, using suction cup like mouths to cling to their hosts.

Slender Jaggedmouth: Resembling extinct barracudas, Slender Jaggedmouths are common predators that inhabit the more open regions of the Inland sea. Their sleek bodies reduce water resistance, allowing them to efficiently pursue prey at high speeds.

Trapjaw Krillfish: An example of convergent evolution, the Trapjaw Krillfish adopted a similar tactic that many predatory Loriciferan use in the Global Ocean. The forelimbs of the Trapjaw Krillfish have modified to form jaw-like structures with coloring to resemble prey species (Common Filtermouths) to lure unsuspecting organisms to their trap.

Flat Jaggedmouth: Another example of convergent evolution, this Jaggedmouth species independly evolve the same anatomy and development of flatfishes to fill the same ecological roles they did.

Piranha Shark: another descendant of cookiecuter sharks, this species is actually a survivor from the past, having evolved roughly 10 million years from the end of the 21st century. Though not incredibly large (around 4-5ft), Piranha Sharks are actually top predators in their ecosystem. They hunt in schools to either corral schools of small fish and crustaceans or pressure larger organisms and successively bite off chunks of flesh.

Sailback Filtermouth: Resembling a mix of sailfish and dolphins, Sailback Filtermouths travel in large schools in search of smaller fishes and clouds of plankton.

Baleen Krillfish: The crustacean version of baleen whales, Baleen Krillfish push the limits of arthropod size, reaching lengths up to 8.531ft (2.6m). Traveling in pods, they use their Baleen-like forelimbs to filter feed on plankton and other small organisms.

Snapjaw: One of the last surviving reptiles on earth, the snap jaw is a fully aquatic descendant of saltwater crocodiles who evolved smoother scales and more fish-like tails for more efficient movement in water. They also evolved more flexible necks they allow swift movement up and down as well as left and right. This enables the snap jaw to catch prey from virtually any direction while remaining motionless in the water.

Cow Shark: The first example of a herbivorous shark, Cow Sharks evolved from bonnethead sharks which normally feed on crabs and such but are able to Ingest sea grasses and digest them with moderate efficiency. Cow Sharks evolved teeth for scraping up algae and sea grasses and bloated bellies with improved effectiveness in digesting them.

Hingejaw Jaggedmouths: One of the apex predators of the Inland Sea, Hingejaw Jaggedmouths are ambush hunters who can open their jaws up to 80 degrees to swallow prey much larger than an animal of its size normally would. Once well fed, they return to their solitary lives at the lower levels of the Inland Sea, not needing to eat for another week or so.

Comments and critiques are welcome.

Description
Took a lot of work but finally completed a new addition to my Pangea Ultima project. All of these creatures are various marine life that exist within the Inland Sea. To summarize, the majority of the Inland Sea’s inhabitants are descendants of bristle mouth fish and krill (two of the most massive biomasses in the animal kingdom). The bristle mouths split into two major groups, the Filtermouths and the more diverse and predatory Jaggedmouths, while the krill evolved into a new group of crustaceans called Krillfish, which are large are more freeswiming than previous crustaceans. There are also a few copepods, sharks, and one of the last reptile species on Earth. There’s a lot of species to go over so I’ll get started:

Common Filtermouth: The most numerous species of their group, common filter mouths act as prey for most medium sized predators in the Inland sea. Like other species in their group, the teeth of Filtermouths are designed for filter feeding though they can also catch smaller organisms.

Grazing Copepod: a giant among Copepods, this species grazes on algae that grow on submerged rocks close to the shoreline.

Carpet Krillfish: a relatively primitive Krillfish species, Carpet Krillfish inhabit the sea floor and feed on bits and carcasses that sink down to the bottom.

Leech Shark: small descendants of cookiecutter sharks, Leech Sharks latch on to the softer areas of larger organisms to feed on their blood, using suction cup like mouths to cling to their hosts.

Slender Jaggedmouth: Resembling extinct barracudas, Slender Jaggedmouths are common predators that inhabit the more open regions of the Inland sea. Their sleek bodies reduce water resistance, allowing them to efficiently pursue prey at high speeds.

Trapjaw Krillfish: An example of convergent evolution, the Trapjaw Krillfish adopted a similar tactic that many predatory Loriciferan use in the Global Ocean. The forelimbs of the Trapjaw Krillfish have modified to form jaw-like structures with coloring to resemble prey species (Common Filtermouths) to lure unsuspecting organisms to their trap.

Flat Jaggedmouth: Another example of convergent evolution, this Jaggedmouth species independly evolve the same anatomy and development of flatfishes to fill the same ecological roles they did.

Piranha Shark: another descendant of cookiecuter sharks, this species is actually a survivor from the past, having evolved roughly 10 million years from the end of the 21st century. Though not incredibly large (around 4-5ft), Piranha Sharks are actually top predators in their ecosystem. They hunt in schools to either corral schools of small fish and crustaceans or pressure larger organisms and successively bite off chunks of flesh.

Sailback Filtermouth: Resembling a mix of sailfish and dolphins, Sailback Filtermouths travel in large schools in search of smaller fishes and clouds of plankton.

Baleen Krillfish: The crustacean version of baleen whales, Baleen Krillfish push the limits of arthropod size, reaching lengths up to 8.531ft (2.6m). Traveling in pods, they use their Baleen-like forelimbs to filter feed on plankton and other small organisms.

Snapjaw: One of the last surviving reptiles on earth, the snap jaw is a fully aquatic descendant of saltwater crocodiles who evolved smoother scales and more fish-like tails for more efficient movement in water. They also evolved more flexible necks they allow swift movement up and down as well as left and right. This enables the snap jaw to catch prey from virtually any direction while remaining motionless in the water.

Cow Shark: The first example of a herbivorous shark, Cow Sharks evolved from bonnethead sharks which normally feed on crabs and such but are able to Ingest sea grasses and digest them with moderate efficiency. Cow Sharks evolved teeth for scraping up algae and sea grasses and bloated bellies with improved effectiveness in digesting them.

Hingejaw Jaggedmouths: One of the apex predators of the Inland Sea, Hingejaw Jaggedmouths are ambush hunters who can open their jaws up to 80 degrees to swallow prey much larger than an animal of its size normally would. Once well fed, they return to their solitary lives at the lower levels of the Inland Sea, not needing to eat for another week or so.

Comments and critiques are welcome.