1. Within the orifice beneath the operculum there is a tongue-like lingula . 2. If one is lying on the left, it goes to the lingula . 3. The lingula receives information from the contralateral inferior retina representing the superior visual field. 4. Lingula cornea, Platyschisma helicites and numerous phyllocarids and ostracods occur among the fossils.5. Darwin expected species to change slowly, but not at Lingula were unchanged since the earliest fossils. 6. "Lingula reevii " is a U . S . National Marine Fisheries Service Species of Concern. 7. A living fossil is an Lingula ", though the living species in this genus are not identical to fossil brachiopods. 8. Localization of lesions or inflammatory and infectious processes can be difficult to discern on chest radiograph, but can be inferenced by lingula . 9. Some of the fossils found in this layer include the brachiopod genus " Lingula " and the ammonite genus " Meekoceras ". 10. The right middle lobe and left lingula of the lungs are served by bronchi that are oriented downward when a person is in the upright position.
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