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Rubidgea (large animal); Permian; Therapsid (gorgonopsidae); Described by Broom, 1948 ::: Aelurognathus; Permian; Therapsid (gorgonopsidae); Described by Haughton, 1924; Artwork by Maurice Anton ::: Note: from allposters.com: Permian animals. Computer artwork of Rubidgea sp. gorgonopsians taking prey from their smaller relative Aelurognathus, during the Permian period (around 300-250 million years ago) in what is now South Africa.

Rubidgea (large animal); Permian; Therapsid (gorgonopsidae); Described by Broom, 1948 ::: Aelurognathus; Permian; Therapsid (gorgonopsidae); Described by Haughton, 1924; Artwork by Maurice Anton ::: Note: from allposters.com: Permian animals. Computer artwork of Rubidgea sp. gorgonopsians taking prey from their smaller relative Aelurognathus, during the Permian period (around 300-250 million years ago) in what is now South Africa.

1. Lycaenops ornatus 2. Eotitanosuchus olsoni 3. Gorgonops torvus 4. Estemmenosuchus uralensis

1. Lycaenops ornatus 2. Eotitanosuchus olsoni 3. Gorgonops torvus 4. Estemmenosuchus uralensis

Sailback Roster -- Fig. 1. A brief survey of the sailbacks of prehistory. Permian sailbacks, the sphenacodontids: (1) Dimetrodon, (2) Sphenacodon, (3) Secodontosaurus, and (4) Ctenospondylus. The edaphosaurids: (5) Edaphosaurus, (6) Ianthasaurus, (7) Echinerpeton, (8) Lupeosaurus. The temnospondyl: (9) Platyhystrix. Triassic sailbacks, the rauisuchians: (1) Arizonasaurus, (2) Ctenosauriscus, (3) Lotosaurus, and (4) Xilousuchus. Cretaceous sailbacks, the theropods: Spinosaurus (1), Suchomimus…

Sailback Roster -- Fig. 1. A brief survey of the sailbacks of prehistory. Permian sailbacks, the sphenacodontids: (1) Dimetrodon, (2) Sphenacodon, (3) Secodontosaurus, and (4) Ctenospondylus. The edaphosaurids: (5) Edaphosaurus, (6) Ianthasaurus, (7) Echinerpeton, (8) Lupeosaurus. The temnospondyl: (9) Platyhystrix. Triassic sailbacks, the rauisuchians: (1) Arizonasaurus, (2) Ctenosauriscus, (3) Lotosaurus, and (4) Xilousuchus. Cretaceous sailbacks, the theropods: Spinosaurus (1), Suchomimus…

Tyrannosaurus; Late Cretaceous (67 - 66 Ma); Theropod; Discovered by Barnum Brown, 1900-1902; Described by Osborn 1905; Artwork by Ken Puren

Tyrannosaurus; Late Cretaceous (67 - 66 Ma); Theropod; Discovered by Barnum Brown, 1900-1902; Described by Osborn 1905; Artwork by Ken Puren

Palaeos, la historia de la Vida en la Tierra: noviembre 2011

Palaeos, la historia de la Vida en la Tierra: noviembre 2011

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