page_title: Ctenochasma
section_title: Description
hierarchical_section_title: Ctenochasma / Description
context_page_description: Ctenochasma is a genus of Late Jurassic ctenochasmatid pterosaur belonging to the suborder Pterodactyloidea. Three species are currently recognized: C. roemeri, C. taqueti, and C. elegans. Their fossilized remains have been found in the Solnhofen Limestone of Bavaria, Germany, the "Purbeck Group" of northeastern Germany, and the Calcaires tâchetés of eastern France.
context_section_description: Ctenochasma is distinguished mainly by its numerous (over 400 in adults) long, thin, curved and closely packed teeth, which lined its elongated and narrow snout. The teeth were so closely packed that they formed a comb, and in adults they projected outward away from the jaws, forming a basket; traditionally, these are thought to indicate a filter feeding lifestyle, straining water through the teeth in order to capture and eat small invertebrates, but unlike the related Pterodaustro it lacks adaptations that would form a pumping mechanism. Instead, the spatulate profile formed by the teeth probably indicate a spoonbill-like lifestyle, increasing the surface area of the jaws in order to catch small prey. The snout curved slightly upward and was rounded at the tip, and the teeth were restricted to the front half of the jaws.
  The smallest species, Ctenochasma elegans, had a wingspan of only about 25 centimeters (9.8 in). Ctenochasma is distinguished by its mouth which contained as many as 260 long, thin comb-like teeth. Adult Ctenochasma had a bony crest along the skull, though this is not found in juveniles.
  Comparisons between the scleral rings of both Ctenochasma elegans and Ctenochasma taqueti and modern birds and reptiles suggest that these taxa may have been nocturnal, and may have had activity patterns similar to modern nocturnal seabirds. This may also indicate niche partitioning with contemporary pterosaurs inferred to be diurnal, such as Pterodactylus and Scaphognathus.
  Compared to other ctenochasmatoids, it had larger wings, and may have displayed a flying style comparable to that of modern skuas.
caption: Fossil specimen of a young juvenile C. elegans
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