Post by dinosauria101 on Oct 1, 2019 17:34:17 GMT 5
Prionosuchus plummeri
Prionosuchus is an extinct genus of large temnospondyl. A single species, P. plummeri, is recognized from the early Permian period (some time between 299 and 272 million years ago). Its fossils have been found in what is now northeastern Brazil. he incomplete skull of the holotype specimen has been estimated to be 50 centimetres (20 in) long.[2] Several more fragmentary specimens have been found. One very fragmentary but very large specimen (BMNH R12005) appears to have come from an individual nearly three times the size of most other specimens, and may have had a skull that measured up to 1.6 metres (5.2 ft) long.[2] Based on related species, the total body length of this specimen has been estimated at about 9 metres (30 ft), making it the largest known species of temnospondyl. The average mass of an adult Prionosuchus is estimated at over 2,000 kilograms (4,400 lb).[3] With an elongated and tapered snout, numerous sharp teeth, long body, short legs, and a tail adapted for swimming, its general appearance was very similar to a modern gharial or gar, and it probably had a similar lifestyle as an ambush aquatic predator feeding on fish and other aquatic animals. A study on the closely related Archegosaurus shows that it had a heat balance, gas exchange, osmoregulation, and digestion more similar to that of fish than modern aquatic amphibians; the same probably applied to Prionosuchus as well.[4]
Titanoboa cerrejonensis
Titanoboa (/tiˌtɑːnoʊˈboʊə/) is an extinct genus of very large snakes that lived in what is now La Guajira in northeastern Colombia. They could grow up to 14.6 m (48 ft) long and reach a weight of 2 tons (4,400 lb).[1] Fossils of Titanoboa have been found in the Cerrejón Formation,[2] and date to around 58 to 60 million years ago. The giant snake lived during the Middle to Late Paleocene epoch,[3] a 10-million-year period immediately following the Cretaceous-Paleogene extinction event.[4] The only known species is Titanoboa cerrejonensis, the largest snake ever discovered,[3] which supplanted the previous record holder, Gigantophis.
thumbs-prod.si-cdn.com/4mKH22HWm-MVLLwexQJE8eETbkw=/fit-in/1072x0/https://public-media.si-cdn.com/filer/Titanoboa-Monster-dinosaurs-2.jpg
Credit to Wikipedia
Prionosuchus is an extinct genus of large temnospondyl. A single species, P. plummeri, is recognized from the early Permian period (some time between 299 and 272 million years ago). Its fossils have been found in what is now northeastern Brazil. he incomplete skull of the holotype specimen has been estimated to be 50 centimetres (20 in) long.[2] Several more fragmentary specimens have been found. One very fragmentary but very large specimen (BMNH R12005) appears to have come from an individual nearly three times the size of most other specimens, and may have had a skull that measured up to 1.6 metres (5.2 ft) long.[2] Based on related species, the total body length of this specimen has been estimated at about 9 metres (30 ft), making it the largest known species of temnospondyl. The average mass of an adult Prionosuchus is estimated at over 2,000 kilograms (4,400 lb).[3] With an elongated and tapered snout, numerous sharp teeth, long body, short legs, and a tail adapted for swimming, its general appearance was very similar to a modern gharial or gar, and it probably had a similar lifestyle as an ambush aquatic predator feeding on fish and other aquatic animals. A study on the closely related Archegosaurus shows that it had a heat balance, gas exchange, osmoregulation, and digestion more similar to that of fish than modern aquatic amphibians; the same probably applied to Prionosuchus as well.[4]
Titanoboa cerrejonensis
Titanoboa (/tiˌtɑːnoʊˈboʊə/) is an extinct genus of very large snakes that lived in what is now La Guajira in northeastern Colombia. They could grow up to 14.6 m (48 ft) long and reach a weight of 2 tons (4,400 lb).[1] Fossils of Titanoboa have been found in the Cerrejón Formation,[2] and date to around 58 to 60 million years ago. The giant snake lived during the Middle to Late Paleocene epoch,[3] a 10-million-year period immediately following the Cretaceous-Paleogene extinction event.[4] The only known species is Titanoboa cerrejonensis, the largest snake ever discovered,[3] which supplanted the previous record holder, Gigantophis.
thumbs-prod.si-cdn.com/4mKH22HWm-MVLLwexQJE8eETbkw=/fit-in/1072x0/https://public-media.si-cdn.com/filer/Titanoboa-Monster-dinosaurs-2.jpg
Credit to Wikipedia