Study of the Alligator's Cartilago Transiliens and Its Role in Jaw Muscle Evolution
Author Information
Author(s): Henry P. Tsai, Casey M. Holliday
Primary Institution: University of Missouri
Hypothesis
The cartilago transiliens is a sesamoid developed within one muscle.
Conclusion
The cartilago transiliens is likely a sesamoid formed within a single muscle as it wraps around the pterygoid buttress.
Supporting Evidence
- The cartilago transiliens is a fibrocartilaginous structure that connects jaw muscles in alligators.
- Histological analysis shows that the structure changes as alligators grow older.
- The findings suggest that similar structures may exist in birds and turtles.
Takeaway
The cartilago transiliens is a special structure in alligators that helps their jaw muscles work better, especially when they eat.
Methodology
The study involved dissection, 3D imaging, and microscopy to analyze the structure of the cartilago transiliens in an ontogenetic series of Alligator mississippiensis.
Limitations
The study is limited to a specific species and may not generalize to all crocodylians.
Participant Demographics
The study included alligator specimens of various ages, from embryos to adults.
Digital Object Identifier (DOI)
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