Kimbryanodus
Temporal range:
An illustration of Kimbryanodus from Devonian Australia
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: †Placodermi
Order: †Ptyctodontida
Family: †Ptyctodontidae
Genus: †Kimbryanodus
Trinajstic & Long, 2009
Species:
†K. williamburyensis
Binomial name
†Kimbryanodus williamburyensis
Trinajstic & Long, 2009

Kimbryanodus is a genus of extinct ptyctodontid placoderm fish from the Frasnian of Australia.[1]These placoderms can be told apart from others due to the large eyes, crushing tooth plates, long bodies, reduced armor, and a superficial resemblance to holocephalid fish. The group is so far the only Placoderms known with sexually dimorphic features.[2] The fossils occur as small three dimensional isolated plates.[1] Because of these new specimens the Ptyctodontid grouping got a taxonomic classification, it found that the genus Rhamphodopsis to be the most basal taxa.[1] They are divided by having the more basal taxa having a median dorsal spine, a simple spinal plate, and a simple V-shaped overlap of the anterior lateral and the anterior dorsolateral plates.[1]

References

  1. 1 2 3 4 Trinajstic, Kate; Long, John A. (2009). "A new genus and species of Ptyctodont (Placodermi) from the Late Devonian Gneudna Formation, Western Australia, and an analysis of Ptyctodont phylogeny". Geological Magazine. 146 (5): 743–760. doi:10.1017/S001675680900644X. S2CID 85307140.
  2. ↑ "Polymorphism, variation and evolutionary change in early vertebrates from the Gogo Formation, Western Australia". researchgate.net.
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