Biology:Achyrodon

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Short description: Extinct family of mammals

Achyrodon
Temporal range: Early Cretaceous, Berriasian
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Dryolestida
Family: †Dryolestidae
Genus: †Achyrodon
Owen, 1871[1]
Species:
†A. nanus
Binomial name
†Achyrodon nanus
Owen, 1871[1]

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]

Dryolestidae
Dryolestinae
 

Amblotherium

 
 
 

Laolestes

 
 

Krebsotherium

 
 
 

Dryolestes

 
 

Guimarotodus

 
 
 
 
Kurtodontinae
 

Crusafontia

 
 
 

Achyrodon

 
 

Phascolestes

 
 
 
 

References

  1. ↑ 1.0 1.1 1.2 Owen, R. (1871). "Monograph of the Fossil Mammalia of the Mesozoic Formations". The Palaeontographical Society: 1–115. https://books.google.com/books?id=vknz7vNYuv4C. 
  2. ↑ 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. doi:10.1007/s00114-013-1028-3. PMID 23494201. Bibcode: 2013NW....100..311A. 

Wikidata ☰ Q96371441 entry