Spinosauridae is a family of specialized theropod dinosaurs. Members of this family were large, bipedal predators with elongated, crocodile-like skulls, sporting conical teeth with no or only very tiny serrations. The front dentary teeth fanned out, giving the animal a characteristic look. The name of this family alludes to the typically conspicuous sail-like structure protruding from the back of species in the type genus, Spinosaurus. The purpose of the sail is disputed, whereas popular explanations are that it may have served as a thermoregulator, a threat display, or as a sexual display during courtship, some palaeontologists rather interpret the neural spine elongation in Spinosaurus as a support of a muscular/fatty hump.
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| - Spinosauridae
- Spinosauridae
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| - Spinosauridae ist eine Gruppe von Fleischfresser die für andere Theropoden sehr ungewöhnlich ist, sie trugen Dornenfortsätze auf dem Rücken die wahrscheinlich ein Rückensegel bildeten.
- Spinosauridae is a family of specialized theropod dinosaurs. Members of this family were large, bipedal predators with elongated, crocodile-like skulls, sporting conical teeth with no or only very tiny serrations. The front dentary teeth fanned out, giving the animal a characteristic look. The name of this family alludes to the typically conspicuous sail-like structure protruding from the back of species in the type genus, Spinosaurus. The purpose of the sail is disputed, whereas popular explanations are that it may have served as a thermoregulator, a threat display, or as a sexual display during courtship, some palaeontologists rather interpret the neural spine elongation in Spinosaurus as a support of a muscular/fatty hump.
- Spinosauridae is a family of unusual theropod dinosaurs. Members of this group were generally rather large, bipedal predators with elongated, crocodile-like skulls, sporting conical teeth with no or only very tiny serrations. The front dentary teeth were fanning out giving the animal a characteristic look. The name of this family alludes to the typically conspicuous sail-like structure protruding from the back of at least some species. The purpose of the sail is disputed, but a popular explanation is that it may have served as a thermoregulator or as a way to scare off potential attackers.
- Spinosaurids were an unusual family of megalosauroid tetanuran theropods (partly because they didn't strongly resemble their close cousins). They had large claws on the first finger of their hands, tall spines on their backs (some taller than others) and long, crocodile-like jaws with a notch in the upper jaw just before the tip (similar to the unrelated coelophysoids and dilophosaurids), fitting into a bulge on the tip of the lower jaw. Some scientists have speculated that spinosaurids fed at least in part on fish, as their teeth were straight and unserrated, although there is evidence of a Baryonyx having fed on an Iguanodon, and a spinosaur tooth embedded inside a pterosaur. A study of oxygen isotope levels proved that spinosaurids spent far more of their time in water than most other t
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| - (Charig & Milner, 1986)
* Irritatoridae
- (Martill et al., 1996)
- * Baryonychidae
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| - Stromer, 1915
- Spinosauridae
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| - * Baryonychinae
* Spinosaurinae
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| Name
| - Spinosaurids
- Spinosauridae
- Spinosauridae
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| - Illustration of Spinosaurus.
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| - Mittlere Jura bis Mittlere Kreide
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| - Late Jurassic – Late Cretaceous, 155-93.5 Ma
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| - Illustration of Spinosaurus.
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| - * Spinosaurinae (Stromer, 1915 )
* Baryonychinae (Charig & Milner, 1986)
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| - *Ägypten, England, Niger, Brasilien
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| abstract
| - Spinosauridae is a family of specialized theropod dinosaurs. Members of this family were large, bipedal predators with elongated, crocodile-like skulls, sporting conical teeth with no or only very tiny serrations. The front dentary teeth fanned out, giving the animal a characteristic look. The name of this family alludes to the typically conspicuous sail-like structure protruding from the back of species in the type genus, Spinosaurus. The purpose of the sail is disputed, whereas popular explanations are that it may have served as a thermoregulator, a threat display, or as a sexual display during courtship, some palaeontologists rather interpret the neural spine elongation in Spinosaurus as a support of a muscular/fatty hump. First spinosaurids appeared during the Late Jurassic and became abundant in the Early Cretaceous. So far, the Late Jurassic record of spinosaurids consists only of referred teeth. They seem to disappear in the Cenomanian though teeth from the Turonian of Argentina have been attributed to spinosaurid dinosaurs. Spinosaurid fossils have been recovered in Africa, Europe, South America, and Asia.
- Spinosaurids were an unusual family of megalosauroid tetanuran theropods (partly because they didn't strongly resemble their close cousins). They had large claws on the first finger of their hands, tall spines on their backs (some taller than others) and long, crocodile-like jaws with a notch in the upper jaw just before the tip (similar to the unrelated coelophysoids and dilophosaurids), fitting into a bulge on the tip of the lower jaw. Some scientists have speculated that spinosaurids fed at least in part on fish, as their teeth were straight and unserrated, although there is evidence of a Baryonyx having fed on an Iguanodon, and a spinosaur tooth embedded inside a pterosaur. A study of oxygen isotope levels proved that spinosaurids spent far more of their time in water than most other theropods (the smaller members more than the larger ones). Many species are named only from teeth, so their validity is questionable. All spinosaurids are Water Dinosaurs, and are the only theropods to be so.
- Spinosauridae ist eine Gruppe von Fleischfresser die für andere Theropoden sehr ungewöhnlich ist, sie trugen Dornenfortsätze auf dem Rücken die wahrscheinlich ein Rückensegel bildeten.
- Spinosauridae is a family of unusual theropod dinosaurs. Members of this group were generally rather large, bipedal predators with elongated, crocodile-like skulls, sporting conical teeth with no or only very tiny serrations. The front dentary teeth were fanning out giving the animal a characteristic look. The name of this family alludes to the typically conspicuous sail-like structure protruding from the back of at least some species. The purpose of the sail is disputed, but a popular explanation is that it may have served as a thermoregulator or as a way to scare off potential attackers. All spinosaurids appeared during the Cretaceous period without ever, judging by the scarce findings, becoming abundant. Spinosaurid fossils have been recovered in Africa, Europe, South America, and Asia.
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