单词 | synapsid |
释义 | synapsid (once / 1181932 pages) n WORD FAMILY synapsid: synapsids USAGE EXAMPLESResearchers found that the eyes of ancient synapsids likely spanned a range of light sensitivities, some suited to nighttime and others favoring daylight. Reuters(Sep 03, 2014) Dinosaurs and synapsids, of course, did not fare so well. Scientific American(Apr 01, 2013) This could imply that the Parnaíba Basin did lie along an important dispersal corridor, even if synapsids didn’t pass through the area. New York Times(May 07, 2012) n extinct reptile having a single pair of lateral temporal openings in the skull Syn|Hypo|Hyper synapsid reptile protomammal, therapsid probably warm-blooded; considered direct ancestor of mammals ictodosaurintermediate in form between the therapsids and most primitive true mammals pelycosaurlarge primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America edaphosaurusheavy-bodied reptile with a dorsal sail or crest; of the late Paleozoic dimetrodoncarnivorous dinosaur of the Permian in North America having a crest or dorsal sail Chronoperates paradoxusshrew-sized protomammal from the Alberta region of Canada; from about 55 million years ago (much more recent than other mammal-like reptiles) cynodontsmall carnivorous reptiles dicynodonta kind of therapsid reptile, reptilian any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms |
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