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Erquelinnesia exemplified a development of evolutionary radiation in ancient sea turtles. They have physiologically developed a skull suitable for crushing shells ( durophagy ). This morphological features survived until the Miocene period with the discovery of the genus Pacifichelys
The radiated tortoise (Astrochelys radiata) is a tortoise species in the family Testudinidae. [4] [5] Although this species is native to and most abundant in southern Madagascar, [6] it can also be found in the rest of this island, and has been introduced to the islands of Réunion and Mauritius. [7]
Archelosauria is a clade grouping turtles and archosaurs (birds and crocodilians) and their fossil relatives, to the exclusion of lepidosaurs (the clade containing lizards, snakes and the tuatara). The majority of phylogenetic analyses based on molecular data (e.g. DNA and proteins) have supported a sister-group relationship between turtles and ...
The leatherback sea turtle is the largest sea turtle, reaching 1.4 to more than 1.8 m (4.6 to 5.9 ft) in length and weighing between 300 and 640 kg (661 to 1,411 lbs). [11] Other sea turtle species are smaller, ranging from as little as 60 cm (2 ft) long in the case of the Kemp's ridley, which is the smallest sea turtle species, to 120 cm (3.9 ...
Radioresistance is the level of ionizing radiation that organisms are able to withstand.. Ionizing-radiation-resistant organisms (IRRO) were defined as organisms for which the dose of acute ionizing radiation (IR) required to achieve 90% reduction (D10) is greater than 1,000 gray (Gy) [1]
Leatherback sea turtle washes up on beach. Related internet links. Centre for Ecology and Conservation. Montserrat Government: Ministry of Agriculture and Environment. Show comments.
An endangered sea turtle has finally been returned to the warm waters of the Gulf of Mexico off the Texas coast after its incredible 5,000-mile story of survival that began in Europe one year ago.
The green sea turtle migrates between its nesting sites and its coastal foraging areas.. Sea turtle migration is the long-distance movements of sea turtles (superfamily Chelonioidea) notably the long-distance movement of adults to their breeding beaches, but also the offshore migration of hatchings.