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* Giving pterosaurs bat-like wing structures and thumbs. While they make for convenient reference models, the wings of bats and pterosaurs are actually a case of convergent evolution. The flight membranes of bats are stretched between 4 elongated fingers + their legs and shoulders leaving their thumbs exposed. While pterosaurs only had one elongated digit, three exposed middle fingers and fused backwards facing thumbs knows as pteroids that purely served as attachment points for their forward membranes
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* ''Polacanthus'' was traditionally depicted as some sort of "reverse stegosaur", with a double row of spikes on its back and a double row of plates along its tail. We now know its armor was extensive like any other ankylosaur.
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* ''Polacanthus'' was traditionally depicted as some sort of "reverse stegosaur", with a double row of spikes on its back and a double row of plates along its tail. We now know these spikes and plates protruded sidewards, and its armor was also extensive like any other ankylosaur.
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* Spinosaurids are sometimes portrayed as quadrupeds, due to their large forelimbs. Like all theropods, they are strictly bipedal as they cannot pronate their hands. It's possible for spinosaurids to crouch in a quadrupedal pose though.
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[[folder:''Allosaurus'' and other Carnosaurs]]
* Allosauroids are sometimes depicted as being able to easily kill completely armored dinosaurs such as ankylosaurs, an impossible feat since they have cutting rather than crushing teeth. This is why tyrannosaurs are more built for attacking armored prey. These two groups are opposite ends of the specialization spectrum; ''Allosaurus'' and it's relatives were actually well evolved for hunting the massive sauropods by slashing into them with their teeth and bleeding them to death, monitor lizard-style. It's also been stated in some sources and documentaries that ''Allosaurus'' had a bite force weaker than a lion's and thus had to use its head like an axe to slash at prey; not only would this strategy have broken its teeth [[https://www.youtube.com/watch?v=j6E-mGjgk8g or outright broken its skull and jaw]], but the original study that led to such a claim about its bite strength was based on incomplete data. ''Allosaurus'' would not have been able to bite as strongly as ''T. rex'', but its jaw strength was in fact more respectable than previously thought.
* ''Allosaurus'' used to be depicted looking like a three-fingered, downsized ''Tyrannosaurus'' (i.e. bulky body, no brow horns). This was during the age when it was considered to be an ancestor or close cousin of ''T. rex'', which we now know was simply not the case.
* In a lot of older media, including documentaries like ''Series/WalkingWithDinosaurs'', ''Series/TheBalladOfBigAl'', and ''WesternAnimation/WhenDinosaursRoamedAmerica'', adult ''Allosaurus'' are depicted as being comparable in size to T. rex, stretching around 12 meters long, even though most allosaurid specimens from the Morrison Formation are midsized (7.5-9 meters long), while specimens over 10 meters in length are rare, fragmentary and only known from the uppermost strata (implying large size only developed towards the end of their reign), which is something that is pointed out in media like 1988's ''Literature/PredatoryDinosaursOfTheWorld''. There is also debate about whether the larger specimens even belong to ''Allosaurus'' and not a related genus, called ''Saurophaganax'' (with most later studies favoring the latter).
[[/folder]]
* Allosauroids are sometimes depicted as being able to easily kill completely armored dinosaurs such as ankylosaurs, an impossible feat since they have cutting rather than crushing teeth. This is why tyrannosaurs are more built for attacking armored prey. These two groups are opposite ends of the specialization spectrum; ''Allosaurus'' and it's relatives were actually well evolved for hunting the massive sauropods by slashing into them with their teeth and bleeding them to death, monitor lizard-style. It's also been stated in some sources and documentaries that ''Allosaurus'' had a bite force weaker than a lion's and thus had to use its head like an axe to slash at prey; not only would this strategy have broken its teeth [[https://www.youtube.com/watch?v=j6E-mGjgk8g or outright broken its skull and jaw]], but the original study that led to such a claim about its bite strength was based on incomplete data. ''Allosaurus'' would not have been able to bite as strongly as ''T. rex'', but its jaw strength was in fact more respectable than previously thought.
* ''Allosaurus'' used to be depicted looking like a three-fingered, downsized ''Tyrannosaurus'' (i.e. bulky body, no brow horns). This was during the age when it was considered to be an ancestor or close cousin of ''T. rex'', which we now know was simply not the case.
* In a lot of older media, including documentaries like ''Series/WalkingWithDinosaurs'', ''Series/TheBalladOfBigAl'', and ''WesternAnimation/WhenDinosaursRoamedAmerica'', adult ''Allosaurus'' are depicted as being comparable in size to T. rex, stretching around 12 meters long, even though most allosaurid specimens from the Morrison Formation are midsized (7.5-9 meters long), while specimens over 10 meters in length are rare, fragmentary and only known from the uppermost strata (implying large size only developed towards the end of their reign), which is something that is pointed out in media like 1988's ''Literature/PredatoryDinosaursOfTheWorld''. There is also debate about whether the larger specimens even belong to ''Allosaurus'' and not a related genus, called ''Saurophaganax'' (with most later studies favoring the latter).
[[/folder]]
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* Allosauroids are sometimes depicted as being able to easily kill completely armored dinosaurs such as ankylosaurs, an impossible feat since they have cutting rather than crushing teeth. This is why tyrannosaurs are more built for attacking armored prey. These two groups are opposite ends of the specialization spectrum; ''Allosaurus'' and it's relatives were actually well evolved for hunting the massive sauropods by slashing into them with their teeth and bleeding them to death, monitor lizard-style. It's also been stated in some sources and documentaries that ''Allosaurus'' had a bite force weaker than a lion's and thus had to use its head like an axe to slash at prey; not only would this strategy have broken its teeth [[https://www.youtube.com/watch?v=j6E-mGjgk8g or outright broken its skull and jaw]], but the original study that led to such a claim about its bite strength was based on incomplete data. ''Allosaurus'' would not have been able to bite as strongly as ''T. rex'', but its jaw strength was in fact more respectable than previously thought.
* ''Allosaurus'' used to be depicted looking like a three-fingered, downsized ''Tyrannosaurus'' (i.e. bulky body, no brow horns). This was during the age when it was considered to be an ancestor or close cousin of ''T. rex'', which we now know was simply not the case.
* In a lot of older media, including documentaries like ''Series/WalkingWithDinosaurs'', ''Series/TheBalladOfBigAl'', and ''WesternAnimation/WhenDinosaursRoamedAmerica'', adult ''Allosaurus'' are depicted as being comparable in size to T. rex, stretching around 12 meters long, even though most allosaurid specimens from the Morrison Formation are midsized (7.5-9 meters long), while specimens over 10 meters in length are rare, fragmentary and only known from the uppermost strata (implying large size only developed towards the end of their reign), which is something that is pointed out in media like 1988's ''Literature/PredatoryDinosaursOfTheWorld''. There is also debate about whether the larger specimens even belong to ''Allosaurus'' and not a related genus, called ''Saurophaganax'' (with most later studies favoring the latter).
* ''Allosaurus'' used to be depicted looking like a three-fingered, downsized ''Tyrannosaurus'' (i.e. bulky body, no brow horns). This was during the age when it was considered to be an ancestor or close cousin of ''T. rex'', which we now know was simply not the case.
* In a lot of older media, including documentaries like ''Series/WalkingWithDinosaurs'', ''Series/TheBalladOfBigAl'', and ''WesternAnimation/WhenDinosaursRoamedAmerica'', adult ''Allosaurus'' are depicted as being comparable in size to T. rex, stretching around 12 meters long, even though most allosaurid specimens from the Morrison Formation are midsized (7.5-9 meters long), while specimens over 10 meters in length are rare, fragmentary and only known from the uppermost strata (implying large size only developed towards the end of their reign), which is something that is pointed out in media like 1988's ''Literature/PredatoryDinosaursOfTheWorld''. There is also debate about whether the larger specimens even belong to ''Allosaurus'' and not a related genus, called ''Saurophaganax'' (with most later studies favoring the latter).
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None
Added DiffLines:
* In a lot of older media, including documentaries like ''Series/WalkingWithDinosaurs'', ''Series/TheBalladOfBigAl'', and ''WesternAnimation/WhenDinosaursRoamedAmerica'', adult ''Allosaurus'' are depicted as being comparable in size to T. rex, stretching around 12 meters long, even though most allosaurid specimens from the Morrison Formation are midsized (7.5-9 meters long), while specimens over 10 meters in length are rare, fragmentary and only known from the uppermost strata (implying large size only developed towards the end of their reign), which is something that is pointed out in media like 1988's ''Literature/PredatoryDinosaursOfTheWorld''. There is also debate about whether the larger specimens even belong to ''Allosaurus'' and not a related genus, called ''Saurophaganax'' (with most later studies favoring the latter).
