Evolution of the mammalian middle ear

@article{Allin1975EvolutionOT,
  title={Evolution of the mammalian middle ear},
  author={Edgar F. Allin},
  journal={Journal of Morphology},
  year={1975},
  volume={147}
}
  • E. Allin
  • Published 1 December 1975
  • Biology
  • Journal of Morphology
The structure and evolution of the mandible, suspensorium, and stapes of mammal‐like reptiles and early mammals are examined in an attempt to determine how, why, and when in phylogeny the precursors of the mammalian tympanic bone, malleus, and incus (postdentary jaw elements and quadrate) came to function in the reception of air‐borne sound. The following conclusions are reached. 
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260 Citations
Highly Influential Citations
24
Background Citations
91
Methods Citations
4
Results Citations
6

260 Citations

Probable diphyletic formation of the mammalian middle ear: Monotremata and Theria
The first steps in the formation of the middle ear of the mammalian type, with the tympanum and three auditory ossicles, have only been passed by higher cynodonts. They have an incipient malleus,…
Eotherapsid hypothesis for the origin of Monotremata
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Comparative study of the cranial structures of mammals and theromorphs shows that Monotremata evolved from the eotherapsid stem of theROMorphs, while therian mammals are descendants of eutherapsids.
The ear in the theropsida
The Evolution of Single- and Multiple-Ossicle Ears in Fishes and Tetrapods
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The Ostariophysi are the hearing specialists of the ray-finned world and include the gonorynchiforms and a much larger group called the Otophysi, distinguished by having some of the anterior neural arches and supraneurals modified into the Weberian apparatus.
Comment on "Independent Origins of Middle Ear Bones in Monotremes and Therians" (I)
TLDR
The middle ear ossicles of all extant, adult members of crown-group Mammalia are homologous with a series of bones in the lower jaw of nonmammalian amniotes, suggesting that the structurally complex mammalian ear evolved independently.
Non-Mammalian Synapsids: The Beginning of the Mammal Line
TLDR
The anatomy of the middle ear region of the known sequence of fossil stem-group mammals—pelycosaurs, basal therapsids, and several cynodonts—is reviewed in this chapter and the interpretation offers support for the second view.
Coevolution of the Mammalian Middle Ear and Neocortex
Phylogenetic analysis with x-ray computed tomography of fossilized and recent crania implicates differential growth of the neocortex in the evolution and development of the mammalian middle ear. In…
Morphological evolution of the mammalian jaw adductor complex
TLDR
The evolution of the mammalian jaw during the transition from non‐mammalian synapsids to crown mammals is thought to have allowed the evolution of a more‐efficient masticatory system in comparison to the plesiomorphic synapsid condition.
Monotreme middle ear is not primitive for Mammalia
TLDR
Concerns are raised about terminology and identification of the incus presented by Wang et al. and show that their analysis does not support their hypothesis that a middle ear with a monotreme-like incus and malleus and incudomallear articulation was primitive for mammals.
Evolution of the Middle and Inner Ears of Mammaliaforms: The Approach to Mammals
TLDR
The homoplasies of ear structures in early mammalian evolution, although seemingly complex, are consistent with the new understanding of a labile morphogenesis of mammalian ears under a complex developmental genetic network.
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References

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TLDR
Several implications of new work on the anatomy of the middle ear region of mammal-like reptiles were discussed and it was suggested that the primitive reptilian-tympanic cavity was supplemented by a recessus mandibularis related to the region of the notched angular bone.
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TLDR
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TLDR
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TLDR
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TLDR
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