| 词汇 | gastroliths |
| 释义 | BETA Examples of gastrolithsgastroliths isn’t in the Cambridge Dictionary yet. You can help! The researchers dismissed using a soapy texture to identify gastroliths as unreliable. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Gastroliths tended to be universally dull, although the colors represented were varied including black, dark brown, purplish red and grey-blue. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. While most predators do not use gastroliths for grinding of food, almost all reasonably complete elasmosaur specimens include gastroliths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Large numbers of small gastroliths are usually associated with species that need to grind tough plant material, such as seeds, after swallowing them. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The clean cuts and lack of gastroliths suggest that the animal relied on oral processing instead of gastroliths or grit to grind food. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The specimen consists of the skull and neck, as well as gastroliths found along with the fossil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Fossil gastroliths have been found associated with both ornithopods and sauropods, though whether they actually functioned as a gastric mill in the latter is disputed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Lacking teeth, they swallow pebbles that act as gastroliths to grind food in the gizzard. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. While crocodiles and some other animals may use gastroliths for ballast today, it appears likely that elasmosaurs used them as a gastric mill. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This may have given them the advantage needed to usurp the formidable sauropods, who depended on gastroliths for grinding food, from their ecological niches. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. High numbers of gastroliths indicate that they could not have been ingested accidentally. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Many ornithomimosaurs, including primitive species, have been found with numerous gastroliths in their stomachs, characteristic of herbivores. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Lacking teeth that are suitable for efficiently chewing of their food, turtles often have gastroliths in their stomach to further grind the plant material. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is known from a skull and partial articulated skeleton with gastroliths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus crabs eyes (i.e., gastroliths), pearls, oyster shells, and coral were supposed to have different properties. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Over 150 pebbles, representing gastroliths, were found within the rib cage; the largest has a diameter of 6 centimeters (2 in). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Others were undoubtedly swallowed by other dinosaurs and highly polished gastroliths may have been swallowed repeatedly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Other appendicular (non-vertebral) material includes a very incomplete and fragmentary shaft of the pubis, and over one hundred gastroliths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. During the construction, the site was plagued by the free-roaming herd of titanosaurs, which were probably searching the site for gastroliths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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