• Corpus ID: 89629751

Memoirs: On the Nature of the Trabecula Cranii

@article{Beer1931MemoirsOT,
  title={Memoirs: On the Nature of the Trabecula Cranii},
  author={Gavin R. de Beer},
  journal={Journal of Cell Science},
  year={1931}
}
  • G. Beer
  • Published 1 September 1931
  • Biology
  • Journal of Cell Science
1. The existing evidence concerning the origin and nature of the trabecula cranii is reviewed, and it is shown that it constitutes a prima facie case for supporting Huxley9s opinion that it represents a visceral structure. 2. The origin of the trabecula is studied in Scyllium canicula, Salmo fario, Rana temporaria, and Amblystoma tigrinum, and the results of this investigation support Huxley9s opinion. 3. The grounds for adhering to Huxley9s view are chiefly that: the trabecular rudiment is a… 
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Developmental patterning and evolution of the mammalian viscerocranium: Genetic insights into comparative morphology
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The interpretation of the metamerical plan of the viscerocranium offers a new scheme of molecular codes associated with the vertebrate head evolution that is more complicated than isomorphic registration of the Hox code to pharyngeal arches.
A new origin for the maxillary jaw.
Developmental origins and evolution of jaws : new interpretation of b maxillary Q and b mandibular Q
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Surprisingly, it is found that both palatoquadrate and Meckel’s cartilage derive solely from the ventral bmandibularQ condensation, which reveals the morphogenetic processes by which cranial neural crest cells within the first arch build the primordia for jaw cartilages and anterior cranium.
Craniofacial Development and the Evolution of the Vertebrates: the Old Problems on a New Background
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A modern version of the germ-layer theory is defined in terms of the conserved differentiation of cell lineages, which is again questioned from the vantage of evolutionary developmental biology.
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Evolution of the vertebrate jaw: comparative embryology and molecular developmental biology reveal the factors behind evolutionary novelty
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The jaw evolved as an evolutionary novelty through tissue rearrangements and topographical changes in tissue interactions through epithelial–mesenchymal interactions.
Peripheral development of cranial nerves in a cyclostome, Lampetra japonica: morphological distribution of nerve branches and the vertebrate body plan
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In later development of the lamprey embryo, myotomes 1 through 3 grew rostrally into the preotic region, laterally covering all of the branchiomeric nerves, which results in a deep position of the cranial nerve, which is not observed in gnathostomes.
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