The skull of the giant predatory pliosaur rhomaleosaurus. If linear dimensions scale isometrically in rhomaleosaurids, this implies an eightfold increase in body mass this is inexact, but provides an estimate of the order of magnitude of the change. High diversity, low disparity and small body size in. It has a reinforced skull to help resist torsion and a ferocious set of teeth, a combination of characters perfect for snatching and killing cephalopods, fish, and other marine reptiles. Locomotion by jacqueline woodson is well written book thats about a boy named lonnie collins motion. The skull of the giant predatory pliosaur rhomaleosaurus cramptoni. Rhomaleosauridae was formally named by kuhn in 1961, originally proposed to include rhomaleosaurus cramptoni and its relatives, which have short necks and large heads relatively to plesiosauroids like elasmosaurus and plesiosaurus, but longer necks and smaller heads relatively to advanced pliosaurids like pliosaurus and kronosaurus. Tom michaud, as well as clinical tools and rehab products. Physiological aspects of legged terrestrial locomotion the motor. Other species that previously fell under this genus were.
The skeletons in the site header are from left to right. Her books include the other side, each kindness, caldecott honor book coming on home soon. It lived during the early jurassic in the shallow sea that was covering most of western europe at that time. This complete specimen was from the lowermost hettangian of streetonthefosse cruickshank, 1994a. A friend of mine has asked me for a reconstruction of rhomaleosaurus cramptoni to illustrate a book he is writing on prehistoric animals from england. Rhomaleosaurus is the largest known lower jurassic pliosaur and was the top predator in early jurassic marine ecosystems. Elevenyearold lonnie collins motion, dubbed locomotion by his mother, deals with the loss of his parents and. In particular, the book addresses the specifications and requirements needed to achieve the proper design of locomotion systems. In this book lonnie is in school, and he writes with. Thus, the largest lower toarcian plesiosaurian, rhomaleosaurus thorntoni, has a trunk almost twice as long as rhomaleosaurus megacephalus from the lower jurassic fauna. Bioinspired legged locomotion 1st edition elsevier.
This book offers a succinct but comprehensive description of the mechanics of muscle contraction and legged terrestrial locomotion. Kronosaurus museum of comparative zoology, harvard university, cambridge, thalassomedon american museum of natural history, new york, cryptoclidus hunterian museum and art gallery, glasgow, rhomaleosaurus natural history museum, london, dolichorhynchops smithsonian institution. Reassessment of plesiosaurus megacephalus sauropterygia. Finalist for the national book award jacqueline woodson is the 20182019 national ambassador for young. Pdf morphology of the caudal vertebrae in rhomaleosaurus. Smith 2007 and smith and dyke 2008 pointed out that these species do not belong to rhomaleosaurus, as r. The predatory pliosaurs were among the largest creatures ever to inhabit the oceans, some reaching gigantic proportions greater than 15 m in length.
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