A New Paleozoic Shark from the Late Carboniferous of Kansas
Author Information
Author(s): Alan Pradel, Paul Tafforeau, John G. Maisey, Philippe Janvier
Primary Institution: American Museum of Natural History
Hypothesis
The study investigates the phylogenetic relationships of Paleozoic chondrichthyans, particularly focusing on the Symmoriiformes.
Conclusion
The study identifies a new species of Symmoriiformes and supports the hypothesis that crown-group chondrichthyans form a closely related group.
Supporting Evidence
- The study describes a new species, Kawichthys moodiei, based on two well-preserved specimens.
- Phylogenetic analysis supports the hypothesis that crown-group chondrichthyans form a tightly-knit group.
- New techniques like synchrotron microtomography provide valuable insights into the anatomy of ancient species.
Takeaway
Scientists found a new type of ancient shark and learned more about how different sharks are related to each other.
Methodology
The study used computerized X-ray synchrotron microtomography to analyze well-preserved chondrichthyan neurocrania.
Limitations
The preservation of the specimens was not complete, which may affect the analysis.
Digital Object Identifier (DOI)
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