Scaglia (genus)

Scaglia
Temporal range: Mid-Late Eocene (Casamayoran-Divisaderan)
~48.6–37.2 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Subclass: Theria
Infraclass: Eutheria
Superorder: †Meridiungulata
Order: †Astrapotheria
Family: †Astrapotheriidae
Genus: †Scaglia
Species

†Scaglia kraglievichorum
Simpson 1957

Scaglia is an extinct genus of South American astrapotherid land mammal that lived during the Eocene (Casamayoran to Divisaderan in the SALMA classification).[1]

Etymology

The genus was named after Argentinian naturalist Galileo Juan Scaglia,[2] and the type species after Argentinian palaeontologist Lucas Kraglievich.

Description

Its type specimen, recovered from the Sarmiento Formation of Argentina, is MMCNT-MdP 207.[3] Like Albertogaudrya, Scaglia was the size of a sheep or a small tapir, hence among the larger mammals in South America at that time.[4]

Phylogeny

Cladogram according to Bond et al., 2011, standing out the phylogenetic position of Scaglia:[5]

Astrapotheria

 

Eoastrapostylops

 
 

 

Trigonostylops

 
 

 

Tetragonostylops

 
 

 

Antarctodon

 
 

 

Albertogaudrya

 
 

 

Scaglia

 
Astrapotheriidae

 

Astraponotus

 
 

 

Maddenia

 
 

 

Parastrapotherium

 
 

 

Astrapotherium

 
 

Granastrapotherium

 
 
 
 
 
 
 
 
 
 
 

References

  1. ↑ Scaglia in the Paleobiology Database. Retrieved August 2017
  2. ↑ Quintana 2008, pp. 4–5
  3. ↑ Scaglia kraglievichorum in the Paleobiology Database. Retrieved March 2013.
  4. ↑ Rose 2006, p. 236
  5. ↑ Bond, Mariano; Kramarz, Alejandro; MacPhee, Ross D. E.; Reguero, Marcelo (2011). "A new astrapothere (Mammalia, Meridiungulata) from La Meseta Formation, Seymour (Marambio) Island, and a reassessment of previous records of Antarctic astrapotheres" (PDF). American Museum Novitates. 3718: 16. doi:10.1206/3718.2.

Bibliography

  • Quintana, Carlos A. (2008). Los Fósiles de Mar del Plata: Un viaje al pasado de nuestra región. Buenos Aires: Libros del Espinillo. ISBN 9781435737358. Retrieved March 2013. Check date values in: |accessdate= (help)
  • Rose, Kenneth David (2006). The beginning of the age of mammals. Baltimore: JHU Press. ISBN 0801884721.

Further reading

  • Carroll, Robert Lynn (1988). Vertebrate Paleontology and Evolution. New York: W. H. Freeman and Company. ISBN 9780716718222. OCLC 14967288.
  • Simpson, George Gaylord (1957). "A new Casamayoran astrapothere". Revista del Museo Municipal de Ciencias Naturales y Tradicional de Mar del Plata. 1 (3): 11–18. OCLC 81633287.


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