. lull deep * mp'* EMBOLOMERI •ackban. complex, RHACHITOMI*- vertebrae interlocking ibi weak — — — — — — llmbi strong — — .— — — • Triassic From 200 to 155 million years ago — Skull very flat Backbone . STEREOSPONDYLI. i— Llmbf weak

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Keywords: ., bookcentury1900, bookpublishernewyork, booksubjectreptilesfossil