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Rhinoptera bonasus (Mitchill, 1815) - cownose stingray teeth & skeletal mouthparts (public display, Greater Cleveland Aquarium, Cleveland, Ohio, USA). I've seen fossil stingray teeth several times, but never understood them until now. The aquarium display shown above is the skeletal mouth remains of a modern cownose stingray.
Cownose ray teeth and mouthparts. Stingray teeth consist of interlocking bars (dental plates) that crush food. The cownose ray exhibits a durophagous diet, meaning it feeds upon hard-shelled organisms, such as mollusks , crustaceans , but they prefer scallops or clams , which have softer shells and are categorized as bivalves . [ 2 ]
Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
The bizarre Lessiniabatis of Early Eocene Italy. Permineralized stingray teeth have been found in sedimentary deposits around the world as far back as the Early Cretaceous.The oldest known stingray taxon is "Dasyatis" speetonensis from the Hauterivian of England, whose teeth most closely resemble that of the extant sixgill stingray (Hexatrygon).
This logo image consists only of simple geometric shapes or text. It does not meet the threshold of originality needed for copyright protection, and is therefore in the public domain . Although it is free of copyright restrictions, this image may still be subject to other restrictions .
Bing.com – Has an Advanced Image Search that offers images in different resolutions and also categorizes images. Allows free querying of the bing Image Search API up to a certain limit per day. Everystockphoto.com – Searching over 4.3 million public domain and creative commons photos including Wikipedia and NASA. Free user accounts with ...
The common stingray has a plain coloration and mostly smooth skin. The common stingray has been reported to reach a width of 1.4 m (4.6 ft) and a length of 2.5 m (8.2 ft), though a width of 45 cm (18 in) is more typical. [8] The flattened pectoral fin disc is diamond-shaped and slightly wider than it is long, with narrowly rounded outer corners ...
The cowtail stingray (Pastinachus sephen) is a species of stingray in the family Dasyatidae, widespread in the Indo-Pacific region and occasionally entering freshwater habitats. Other common names include banana-tail ray, drab stingray, fantail ray, feathertail stingray, and frill tailed sting ray.