Osteoderm

Source: Wikipedia, the free encyclopedia.
Closeup of a helodermatid's skin, revealing the osteoderms
Armadillo skeleton with shell, which is made of osteoderms (displayed at the Museum of Osteology)

Osteoderms are bony deposits forming scales, plates, or other structures based in the

ichthyosaur
affinities).

Osteoderms are uncommon in

neural crest cell population during embryonic development of the organism. The scleroblastic neural crest cell population shares some homologous characteristics associated with the dermis.[4] Neural crest cells, through epithelial-to-mesenchymal transition, are thought to contribute to osteoderm development.[2]

The osteoderms of modern crocodilians are heavily vascularized,

buffer against acidification of the body fluids.[8]

See also

References

Further reading

  • Carroll, R. L. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman and Company.