Cookiecutter Shark vs. Liaoningosaurus paradoxus

[dinosauria101]

Cookiecutter Shark - Isistius brasiliensis

usa.oceana.org/sites/default/files/styles/blog_node/public/cookie4.jpg?itok=Rg5gVame

Order: Squaliformes
Family: Dalatiidae
Length: 50 cm
Mass: 1.2 kg
Diet: Other marine animals
Killing apparatus: Slicing jaws
Almost exclusively feeds by biting chunks of flesh off larger animals. The bite is shaped like a cookie, hence the name.

Liaoningosaurus paradoxus

static.scientificamerican.com/blogs/cache/file/05C688D4-8DCD-4142-A35ADD7C58AADD6A_source.jpg?w=590&h=800&055609BF-DF62-4222-A96027C5230CF13B

Order: Thyreophora
Family: Ankylosauridae
Length: 34 centimeters, but this is a juvenile. Adults would be larger.
Mass: ~1 kg based on relatives, but this is a juvenile. Adults would be larger.
Diet: Fish
Age and Location: Early Cretaceous, 125 million years ago, China
Killing apparatus: Gripping jaws, manual claws
The only known piscivorous ankylosaur. Theorized to live like a modern turtle.

[Infinity Blade]

I think theropod defended the biology of Liaoningosaurus as proposed by Ji et al. (2016) once on this forum, but I don't know if he still holds those views. I also tried looking for that post a while back and couldn't find it, so I could very well be wrong.

Killing apparatus: Slicing jaws, spiked tail osteoderms

So, let's address this. First thing I want to say is that this ankylosaur was said to have had sharp, forked teeth. If we take this description at face value, then this is an adaptation for gripping fish, not slicing them. I also don't know if I would include tail osteoderms as some of its weapons; its preserved skeleton-> doesn't appear to show anything like that. But, maybe to make up for this, Liaoningosaurus was also said to possess long sharp claws on its hands and feet for prey capture by the aforementioned authors (I at least recovered the abstract->)

Again, this depends on whether or not this...unique...interpretation of Liaoningosaurus holds any water.

[dinosauria101]

Hmm....interesting. I will have to update the OP.

If Liaoningosaurus was not a swimmer, this would have to be moved to the fantasy section.

[6f5e4d]

Liaoningosaurus can win this fight for sure, it would dominate the cookiecutter shark.

[dinosauria101]

Why do you think that would be? I agree the ankylosaur can win due to armor and fish hunting skills, but DOMINATING? Isn't that a bit much?