Escavadodon

Escavadodon ("tooth from Escavada") is an extinct genus of pangolin-like insectivorous mammal which was endemic to North America during the Early Paleocene (Torrejonian in the NALMA classification), from approximately 63.3 to 61.7 Ma, existing for approximately 1.6 million years .[1] It contains a single species, Escavadodon zygus.

Escavadodon
Temporal range: ~63.3–61.7 Ma
↓
Early Paleocene
Escavadodon zygus skeleton.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Palaeanodonta
Family: †Escavadodontidae
Rose & Lucas, 2000
Genus: †Escavadodon
Rose & Lucas, 2000
Type species
Escavadodon zygus
Rose & Lucas, 2000

Taxonomy

The monotypic family Escavadodontidae was erected by Rose and Lucas in 2000 to hold the type species, recovered from the Nacimiento Formation of New Mexico.[2]

Phylogenetic tree

The phylogenetic relationships of genus Escavadodon is shown in the following cladogram:[3][4][5]

 Pholidotamorpha 
 

Pholidota (sensu stricto)

 
 †Palaeanodonta 
 
 †Escavadodontidae 
 †Escavadodon 

†Escavadodon zygus

 
 
 
 
 ? 

†Amelotabes

 
 ? 

†Melaniella

 
 
 

†Epoicotheriidae

 
 ? 

†Arcticanodon

 
 
†Metacheiromyidae
 

†Propalaeanodontinae

 
 
 

†Mylanodon

 
 
 

†Brachianodon

 
 
 

†Palaeanodon

 
 
 

†Metacheiromys

 
 

†Ernanodonta

 
 
 
 
 †Metacheiromyinae
 
 
 
 
 
 (Pholidota sensu lato) 

References
  1. Paleobiology Database: Escavadodontidae basic info.
  2. Rose, Kenneth D.; Lucas, Spencer G. (2000). "An early Paleocene palaeanodont (Mammalia, ?Pholidota) from New Mexico, and the origin of Palaeanodonta". Journal of Vertebrate Paleontology. 20 (1): 139–156. doi:10.1671/0272-4634(2000)020[0139:AEPPMP]2.0.CO;2. ISSN 0272-4634.
  3. Kenneth D. Rose (2008). "Palaeanodonta and Pholidota". In Janis, Christine M; Gunnell, Gregg F; Uhen, Mark D (eds.). 9 - Palaeanodonta and Pholidota. pp. 135–146. doi:10.1017/CBO9780511541438.010. ISBN 9780511541438.
  4. Gaudin, Timothy (2009). "The Phylogeny of Living and Extinct Pangolins (Mammalia, Pholidota) and Associated Taxa: A Morphology Based Analysis" (PDF). Journal of Mammalian Evolution. Heidelberg, Germany: Springer Science+Business Media. 16 (4): 235–305. doi:10.1007/s10914-009-9119-9. S2CID 1773698.
  5. Kondrashov, Peter; Agadjanian, Alexandre K. (2012). "A nearly complete skeleton of Ernanodon (Mammalia, Palaeanodonta) from Mongolia: morphofunctional analysis". Journal of Vertebrate Paleontology. 32 (5): 983–1001. doi:10.1080/02724634.2012.694319. ISSN 0272-4634. S2CID 86059673.
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