| 31. | Pristichampsids also have a notch between the premaxilla bone at the tip of the upper jaw and the maxilla behind it.
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| 32. | Acanthomorphs have developed spiny cycloid scales of other groups ), tooth-bearing premaxilla and greater adaptations to high speed swimming.
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| 33. | This is accomplished with a hinge made of the joints between the premaxilla and maxilla bones and the lacrimal and prefrontal bones.
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| 34. | The premaxilla bones make up almost 50 % of the entire skull length, and both sides are filled with small holes.
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| 35. | The marginal tooth rows in mosasauroids like " Clidastes " are found on the premaxilla, maxilla and the dentary.
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| 36. | It consists of a partial mandible; a premaxilla, present in the same rock, is referred to it as paratype.
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| 37. | The point of the upper jaw, composed of the premaxilla bones, was slender and had a needle-like tip.
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| 38. | In " T . alexandrae " the premaxilla was toothless, beaked, with pseudodont dentition of bony projections.
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| 39. | "Wargosuchus " is MOZ-PV 6134, a partial right premaxilla and maxilla, and partial skull roof.
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| 40. | The premaxilla and maxilla of the upper jaw attach closely to each other, making a continuous row of evenly spaced teeth.
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