Yumuşak kabuklu kaplumbağa evrimi: Akdeniz’deki tek tür, Trionyx triunguis

Kaplumbağaların vücut morfolojilerinin kökeni sürüngen evriminin en önemli gizemlerinden birinioluşturmaktadır. Günümüze kadar yapılan çeşitli moleküler çalışmalar, kaplumbağaların Tuatara, kertenkele veyılanların dâhil olduğu Lepidosauria grubunun dışında yer aldığı ve timsah ile kuşların bulunduğu Archosauriagrubuna kardeş grup olduğunu ortaya koymuştur. Araştırıcılar kaplumbağaların atası olarak günümüzden 228milyon yıl öncesine ait olan Eorhynchochelys sinensis isimli yeni bir tür tanımlamışlardır. Modern kaplumbağlarıngünümüzde yaşayan en eski grubu olarak bilinen Güneydoğu Asya orijinli olan Trionychidae familyasına girenkaplumbağalar gece aktif olan etçil tatlı su kaplumbağalarıdır. Karapas ve plastronlarında epidermis orjinli plaklarolmamasına rağmen bu bölgelerin üstü ince bir deri ile örtülüdür. Bu grubun bilinen en eski fosil kaydı (yaklaşık100–140 MYÖ) Santanachelys gaffneyi’dir. Trionychidae üyeleri Asya kıtasının Kretase jeolojik dönemininbaşlangıcından günümüze kadar gelen, yüksek oranda morfolojik çeşitlilik gösteren canlılardır.

Evolution of soft-shell tortoise: the only species in the mediterranean, Trionyx triunguis

Turtles are one of the most important mysteries of the reptilian evolution of body morphology. Various molecular studies conducted up to the daylight revealed that the tortoise group was a group for the Archosauria group where the lepidosauria group, including Tuatara, lizards and snakes, was located outside the group and the crocodiles and birds were found. Researchers have identified a new species named Eorhynchochelys sinensis, the ancestor of turtles, dating back 228 mya. Turtles of Trionychidae originated in Southeast Asia, known as the oldest living group of modern tortoises, are carnivorous fresh water turtles active at night. Although there are no epidermic plaques in the carapace and plastons, these areas are covered with thin skin. The oldest fossil record of this group is Santanachelys gaffneyi (about 100-140 mya). The group members are high-order morphologically diverse organisms that date from the beginning of the cretaceous period of the Asian continent.

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