Meckelian groove


Meckelian groove
Meckel\'s foramen

Dictionary of ichthyology. 2009.

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  • Meckelian groove — The Meckelian groove (or Meckel s groove, Meckelian fossa, or Meckelian foramen, or Meckelian canal) is an opening in the medial (inner) surface of the mandible (lower jaw) which exposes the Meckelian cartilage.[1] Modern eutherian mammals (which …   Wikipedia

  • mylohyoid groove — old term for Meckelian groove …   Dictionary of ichthyology

  • Evolution of mammals — Restoration of Thrinaxodon, a member of the cynodont group, which includes the ancestors of mammals Further information: Evolutionary history of life The evolution of mammals within the synapsid lineage (sometimes called mammal like reptiles )… …   Wikipedia

  • Dryolestoidea — Temporal range: Middle Jurassic–Early Paleocene Scientific classification Kingdom: Animalia Phylum: Chordata Class …   Wikipedia

  • Histoire des mammifères — Histoire évolutive des mammifères Reconstitution d un Thrinaxodon, un membre du groupe des cynodontes qui inclut les ancêtres des mammifères. Selon la théorie de l évolution, les mammifères sont issus des synapsides (des reptiles mammaliens)… …   Wikipédia en Français

  • Histoire evolutive des mammiferes — Histoire évolutive des mammifères Reconstitution d un Thrinaxodon, un membre du groupe des cynodontes qui inclut les ancêtres des mammifères. Selon la théorie de l évolution, les mammifères sont issus des synapsides (des reptiles mammaliens)… …   Wikipédia en Français

  • Histoire Évolutive Des Mammifères — Reconstitution d un Thrinaxodon, un membre du groupe des cynodontes qui inclut les ancêtres des mammifères. Selon la théorie de l évolution, les mammifères sont issus des synapsides (des reptiles mammaliens) selon un processus graduel qui a pris… …   Wikipédia en Français

  • Meckel's cartilage — Head and neck of a human embryo eighteen weeks old, with Meckel’s cartilage and hyoid bar exposed …   Wikipedia

  • Meckel's foramen — when not completely surrounded by dermal bone, Meckel s cartilage is visible on the medial face of the lower jaw, e.g. some Sarcopterygii. Also called Meckel s or Meckelian canal, groove and fossa although groove is usually used in tetrapods …   Dictionary of ichthyology

  • Styloichthys — Taxobox name = Styloichthyes fossil range = Early Devonian image width = 250px image caption = line drawing of Styloichthyes regnum = Animalia phylum = Chordata subphylum = Vertebrata infraphylum = Gnathostomata classis = Osteichthyes subclassis …   Wikipedia


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