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Nov 18, 2021 · Sauropodomorph dinosaurs were the dominant medium to large-sized herbivores of most Mesozoic continental ecosystems, being characterized by their long necks and reaching a size unparalleled by...
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Sauropsido. Ang mga Sauropsido ay kabilang sa pangkat o kladong Sauropsida, isang pangkat ng mga amniota na kinabibilangan ng lahat ng mga umiiral na reptilya at ibon at mga ninuno nitong fossil kabilang ang mga dinosauro, na agarang mga ninuno ng mga ibon.
The term Sauropsida had from the mid 20th century been used to denote a branch-based clade containing all amniote species which are not on the synapsid side of the split between reptiles and mammals. This group encompasses all now-living reptiles as well as birds, and as such is comparable to Goodrich's classification.
Sauropsida is defined by Laurin and Reisz, 1995 as: "The last common ancestor of mesosaurs, testudines and diapsids, and all its descendents." This anchors the definition on Mesosauridae - a basal group never appearing on the synapsid side.
Sauropoda(/sɔːˈrɒpədə/), whose members are known as sauropods(/ˈsɔːrəpɒdz/;[1][2]from sauro-+ -pod, 'lizard-footed'), is a cladeof saurischian('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their body), and four thick, pillar-like legs.
Sauropsida is the sister taxon to Synapsida, the clade of amniotes which includes mammals as its only modern representatives. Sauropsids include all amniotes more closely related to modern reptiles than to mammals.
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Sep 29, 1995 · DOWNLOAD PDF. Most recent studies of dinosaur phylogeny have concentrated on theropods and ornithischians. As a result, the evolutionary relationships of sauropod dinosaurs are poorly understood. In this paper p...
