Kimbryanodus
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| Kimbryanodus Temporal range: | |
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| An illustration of Kimbryanodus from Devonian Australia | |
Scientific 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
[edit]- ^ a b c d 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. Bibcode:2009GeoM..146..743T. doi:10.1017/S001675680900644X. S2CID 85307140.
- ^ "Polymorphism, variation and evolutionary change in early vertebrates from the Gogo Formation, Western Australia". researchgate.net.