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Description
Hybodus fraasi

Sharks have swum the oceans for over 420,000,000 years. There have been many successful lineages of sharks, however, existing for almost half of the shark's reign was a genus known as Hybodus. It wasn't that big for a shark, however, it lived through the fall of the stem mammals, the rise of the dinosaurs, and went extinct along with the terrible lizards.

Discovery:

The animal was described in 1837 by Swiss-American Paleontologist Louis Agassiz, the same person who described the famous Megalodon. He dubbed the genus Hybodus meaning "Humped-Tooth" after the distinctive structure of some of its teeth. Unlike many prehistoric sharks, only known from fragmentary remains with teeth and occasional vertebra, Hybodus is known from relatively complete specimens. Its smaller size makes fossilization a lot more ideal than larger sharks. Furthermore, it had a more ossified skeletal structure than other cartilaginous fish, making preservation of its entire skeleton far more common.

Description:

Hybodus was around 6ft in length and around 150-200lbs. Resembling a very robust Grey Reef shark with some differences. It had a more compressed snout, a set of antenna-like nubs protruding from the back of its skull, and a tail-fin similar to some deep-water or carpet sharks. Equipped with two sets of teeth in its mouth. The front teeth were pointed, perhaps designed to seize fish, squid, or anything that came close to their maw. The back teeth were rounded, designed to crunch harder prey like shellfish. This could be how they were so successful. Hybodus could have targeted a variety of prey from fish, squid, shellfish, even juvenile Marine Reptiles. The wider diet it meant it could fill a variety of ecological niches. Hybodus and its kin are unique among sharks in that they have two spikes on their dorsal fins. Perhaps this was used to deter predation from Marine Reptiles and other sharks.

Habitat:

In terms of its habitat, Hybodus lived much like modern-day Grey Reef or Sandtiger sharks. Living near coastal waters, and prowling among the reefs, and close to the shoreline of the late Paleozoic and Mesozoic waters. However, its broader diet meant it could also go out to more open waters.

Waste Basket:

Recently, Hybodus's genus has been called into question. Some paleontologists believe that the genus is a wastebasket taxon. Meaning most paleontologists classify all Hybodonts with this skeletal and/or tooth structure and hailing from this time period as Hybodus itself. Some have proposed classifying species from the Mesozoic era as a sister taxon known as Egertonodus. Newer discoveries and more modern research and studies could help clear up this taxonomic mix-up. For the time being, most paleontologists classify most fossil finds as Hybodus.

Extinction:

Hybodus's reign would come to an end 66,000,000 years ago when the KT event ended the reign of not just the dinosaurs, but ammonites, hybodonts, plesiosaurs, among others. However, its distant relatives, the Ptychodontidae would persist for another 5 million years into the Paleocene, before ultimately vanishing from the face of the earth.
___________________________________________________________________________________________

Haven't done an extinct fish, so here's Hybodus. This is really just a warm-up for another animal from WWD, I think you may know what it is.

Personal Angle: Gonna go a bit WDGHK here, I actually learned about this shark before watching WWD. It was a kid's book with decent Paleoart I got from my Elementary School library I think just titled "Hybodus".

Main things I remember about the book:

-Although inaccurate environmental, behaviorally, and time-wise, the art was decent enough.
I'm 99.9% sure the Hybodus was completely accurate looks-wise. Which isn't that hard. It's a Hybodus. I'd say that was the most accurate animal in WWD so Paleoartists can't really screw it up.

-It was a female Hybodus who at the end of the book gave birth which I thought was cool, and from what I remember was fairly accurate.

-She was "fearless" (as emphasized 20 times).

-It was in Jurassic North America. Maybe in Sundance sea, but IDK. Don't have the book on me

-However, it had Elasmosaurus which somehow time-traveled to the Jurassic, and a 6ft Hybodus somehow killed it. Not y'know, targeting squid or small fish, GOTTA EMPHASIZE THE FEARLESSNESS.

-She was so fearless she took out a Kaiju-sized Liopleurodon that was 80ft long!!! (Yep, the author used WWD's "MAGICAL LIOPLEURODON"size ).

-Oh and she killed the Kaijupleurodon by biting the flipper and other Elasmosaurs and smaller sharks ganged up on the Liopleurodon and the main Hybodus fucking "tail-whacked" the head. I'm not kidding.

Yeah, it appealed to my inner 5 year old, I checked it out a lot over the weekends when at Elemenatary, but in hindsight, it was full of inaccuracies.

No changes made to the model, just gave it this pose, and no this won't be featured in Past Meets Present.

Original Model by DinosaurManZT2 :
Hybodus (HENDRIX) | ZT2 Download Library Wiki | Fandom

Description
Hybodus fraasi

Sharks have swum the oceans for over 420,000,000 years. There have been many successful lineages of sharks, however, existing for almost half of the shark's reign was a genus known as Hybodus. It wasn't that big for a shark, however, it lived through the fall of the stem mammals, the rise of the dinosaurs, and went extinct along with the terrible lizards.

Discovery:

The animal was described in 1837 by Swiss-American Paleontologist Louis Agassiz, the same person who described the famous Megalodon. He dubbed the genus Hybodus meaning "Humped-Tooth" after the distinctive structure of some of its teeth. Unlike many prehistoric sharks, only known from fragmentary remains with teeth and occasional vertebra, Hybodus is known from relatively complete specimens. Its smaller size makes fossilization a lot more ideal than larger sharks. Furthermore, it had a more ossified skeletal structure than other cartilaginous fish, making preservation of its entire skeleton far more common.

Description:

Hybodus was around 6ft in length and around 150-200lbs. Resembling a very robust Grey Reef shark with some differences. It had a more compressed snout, a set of antenna-like nubs protruding from the back of its skull, and a tail-fin similar to some deep-water or carpet sharks. Equipped with two sets of teeth in its mouth. The front teeth were pointed, perhaps designed to seize fish, squid, or anything that came close to their maw. The back teeth were rounded, designed to crunch harder prey like shellfish. This could be how they were so successful. Hybodus could have targeted a variety of prey from fish, squid, shellfish, even juvenile Marine Reptiles. The wider diet it meant it could fill a variety of ecological niches. Hybodus and its kin are unique among sharks in that they have two spikes on their dorsal fins. Perhaps this was used to deter predation from Marine Reptiles and other sharks.

Habitat:

In terms of its habitat, Hybodus lived much like modern-day Grey Reef or Sandtiger sharks. Living near coastal waters, and prowling among the reefs, and close to the shoreline of the late Paleozoic and Mesozoic waters. However, its broader diet meant it could also go out to more open waters.

Waste Basket:

Recently, Hybodus's genus has been called into question. Some paleontologists believe that the genus is a wastebasket taxon. Meaning most paleontologists classify all Hybodonts with this skeletal and/or tooth structure and hailing from this time period as Hybodus itself. Some have proposed classifying species from the Mesozoic era as a sister taxon known as Egertonodus. Newer discoveries and more modern research and studies could help clear up this taxonomic mix-up. For the time being, most paleontologists classify most fossil finds as Hybodus.

Extinction:

Hybodus's reign would come to an end 66,000,000 years ago when the KT event ended the reign of not just the dinosaurs, but ammonites, hybodonts, plesiosaurs, among others. However, its distant relatives, the Ptychodontidae would persist for another 5 million years into the Paleocene, before ultimately vanishing from the face of the earth.
___________________________________________________________________________________________

Haven't done an extinct fish, so here's Hybodus. This is really just a warm-up for another animal from WWD, I think you may know what it is.

Personal Angle: Gonna go a bit WDGHK here, I actually learned about this shark before watching WWD. It was a kid's book with decent Paleoart I got from my Elementary School library I think just titled "Hybodus".

Main things I remember about the book:

-Although inaccurate environmental, behaviorally, and time-wise, the art was decent enough.
I'm 99.9% sure the Hybodus was completely accurate looks-wise. Which isn't that hard. It's a Hybodus. I'd say that was the most accurate animal in WWD so Paleoartists can't really screw it up.

-It was a female Hybodus who at the end of the book gave birth which I thought was cool, and from what I remember was fairly accurate.

-She was "fearless" (as emphasized 20 times).

-It was in Jurassic North America. Maybe in Sundance sea, but IDK. Don't have the book on me

-However, it had Elasmosaurus which somehow time-traveled to the Jurassic, and a 6ft Hybodus somehow killed it. Not y'know, targeting squid or small fish, GOTTA EMPHASIZE THE FEARLESSNESS.

-She was so fearless she took out a Kaiju-sized Liopleurodon that was 80ft long!!! (Yep, the author used WWD's "MAGICAL LIOPLEURODON"size ).

-Oh and she killed the Kaijupleurodon by biting the flipper and other Elasmosaurs and smaller sharks ganged up on the Liopleurodon and the main Hybodus fucking "tail-whacked" the head. I'm not kidding.

Yeah, it appealed to my inner 5 year old, I checked it out a lot over the weekends when at Elemenatary, but in hindsight, it was full of inaccuracies.

No changes made to the model, just gave it this pose, and no this won't be featured in Past Meets Present.

Original Model by DinosaurManZT2 :
Hybodus (HENDRIX) | ZT2 Download Library Wiki | Fandom