| 释义 |
Definition of mesosaur in English: mesosaurnoun ˈmɛsəsɔːˈmē- An extinct small aquatic reptile of the early Permian period, with an elongated body, flattened tail, and a long, narrow snout with numerous pointed teeth. 中龙 Genus Mesosaurus, order Mesosauria, subclass Anapsida Example sentencesExamples - The most basal anapsids, the mesosaurs, are oldest known fully aquatic reptiles.
- At the same time as the mesosaurs were flourishing in this newly formed inland sea, a major period of mountain building began in the south, due to the Andean-style collision of the Palaeo-Pacific plate under the African plate.
- Mesosaur remains are abundant at several sites in this formation, where they occur preserved in centimetre-thick beds and displaying various degrees of skeletal disarticulation.
- Only mesosaurs and araeoscelidians demonstrate more lightly built limbs than protorothyridids.
- Mesosaur fossils appear suddenly in the fossil record, and disappear equally suddenly, and their fossils show no sign of evolution during their existence.
Origin1950s: modern Latin, from Greek mesos 'middle' + sauros 'lizard'. Definition of mesosaur in US English: mesosaur(also mesosaurus) nounˈmē- An extinct small aquatic reptile of the early Permian period, with an elongated body, flattened tail, and a long, narrow snout with numerous pointed teeth. 中龙 Genus Mesosaurus, order Mesosauria, subclass Anapsida Example sentencesExamples - Only mesosaurs and araeoscelidians demonstrate more lightly built limbs than protorothyridids.
- At the same time as the mesosaurs were flourishing in this newly formed inland sea, a major period of mountain building began in the south, due to the Andean-style collision of the Palaeo-Pacific plate under the African plate.
- Mesosaur remains are abundant at several sites in this formation, where they occur preserved in centimetre-thick beds and displaying various degrees of skeletal disarticulation.
- Mesosaur fossils appear suddenly in the fossil record, and disappear equally suddenly, and their fossils show no sign of evolution during their existence.
- The most basal anapsids, the mesosaurs, are oldest known fully aquatic reptiles.
Origin1950s: modern Latin, from Greek mesos ‘middle’ + sauros ‘lizard’. |