Lungfish - Wikipedia
Lungfish represent the closest living relatives of the tetrapods (which includes living amphibians, reptiles, birds and mammals). The mouths of lungfish typically bear tooth plates, which are used to crush hard shelled organisms.
Lungfish dental pattern conserved for 360 Myr | Nature
2001年5月31日 · We have discovered that an identical pattern of tooth development is used to shape these plates in the hatchlings of fossil and living lungfish species that are separated by 360 million years...
Conserved developmental processes constrain evolution of lungfish ...
Although the 3 genera of living lungfish have different-shaped adult tooth plates, their larval stages have similar patterns of development. The sequence in the pattern of initiation of teeth and their modification through ontogeny in Neoceratodus hatchlings provides a developmental model for fossil hatchling tooth plates (smallest 1–2 mm ...
We have discovered that an identical pattern of tooth development is used to shape these plates in the hatchlings of fossil and living lungfish species that are separated by 360 million years...
Spatial and temporal pattern for the dentition in the Australian ...
2009年2月2日 · We report a temporal order of tooth addition in the Australian lungfish where timing of tooth induction is sequential in the same pattern as osteichthyans along the lower jaw. The order of tooth initiation in Neoceratodus starts from the midline tooth, together with left and right ones at jaw position 2, followed by 3 and then 1.
Lungfish dental pattern conserved for 360 Myr - ResearchGate
2001年5月31日 · We have discovered that an identical pattern of tooth development is used to shape these plates in the hatchlings of fossil and living lungfish species that are separated by 360 million years...
Lungfishes: Current Biology - Cell Press
2024年12月16日 · Lungfish jaws are fused to the upper portion of their skulls and bear hyper-mineralised tooth-plates within their palate (not marginal teeth as in many other vertebrates). All extant and some extinct lungfishes have a paired set of bones articulating with the rear of their skull known as ‘cranial ribs’.
True enamel covering in teeth of the Australian lungfish
Using anti-amelogenin primary antibodies for immunodetection and Western blots, enamel protein epitopes were detected in developing lungfish teeth. Using transmission electron microscopy and electron diffraction analysis, long and parallel-oriented hydroxyapatite crystals were observed in lungfish outer tooth coverings.
2002年2月27日 · shared character is the presence in lungfish teeth of a thin layer of true enamel, instead of the enameloid characteristic of the dentition of most fish (Kemp, 1992; Lund et al., 1992; Satchell et al., 2000). Unique char-acters include the diversity of forms of dentine in the tooth plates, as well as the organisation of the dentines
Ultrastructure of developing tooth plates in the Australian lungfish ...
2003年12月1日 · An unexpected function for the inner dental epithelium of lungfish concerns clastic activity on the surface of the bone by cells with definite epithelial characteristics, in effect, ameloclasts. Bone below the lungfish tooth plate is remodelled continually, and new dental tissues are laid down on the remodelled surface (Kemp, 2002a). Some of ...