Achyrodon is an extinct genus of mammal from the Berriasian epoch of Early Cretaceous southern England. The taxon was first described by Richard Owen in 1871 for teeth from the Lulworth Formation.[1] The taxon has been considered a synonym of co-existing Amblotherium pusillum, but can be distinguished by differences in the dental anatomy and an overall smaller size. Achyrodon was closely related to co-existing genus Phascolestes and the slightly younger European form Crusafontia, and together they make up the subfamily Kurtodontinae within Dryolestidae, a family of early mammals between modern monotremes and therians with no living descendants.[2]
| Achyrodon Temporal range: Early Cretaceous,
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Dryolestida |
| Family: | †Dryolestidae |
| Genus: | †Achyrodon Owen, 1871[1] |
| Species: | †A. nanus
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| Binomial name | |
| †Achyrodon nanus Owen, 1871[1]
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References
edit- ^ a b c Owen, R. (1871). "Monograph of the Fossil Mammalia of the Mesozoic Formations". The Palaeontographical Society: 1–115.
- ^ Averianov, A.O.; Martin, T.; Lopatin, A.V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous mammals". Naturwissenschaften. 100 (4): 311–326. Bibcode:2013NW....100..311A. doi:10.1007/s00114-013-1028-3. PMID 23494201. S2CID 18504005.
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