Biology:Haplomastodon

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Haplomastodon
Temporal range: Mid-Late Pleistocene (Ensenadan-Lujanian)
~1.810–0.011 Ma
HaplomastodonPisa.JPG
Skull of H. chimborazi
Scientific classification
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Haplomastodon

Hoffstetter 1950
Species

See text

Synonyms

Notiomastodon Mothé et al. 2013

Haplomastodon is a dubious extinct genus of proboscidean endemic to South America during the Pleistocene from 1.810 million to 11,000 years ago, living for about 1.8 million years.[1] Haplomastodon is considered synonymous with Notiomastodon by some researchers.[2][3]

It had two tusks on either side of a trunk like other members of the Gomphotheriidae. Its apparent range was from Venezuela southward to Argentina , where fossils were recovered in the Suelo Formation, a quarry dig in Corrientes Province.[4] Fossil remains described as Haplomastodon waringi have been found in Soatá in the department of Boyacá in Colombia.[5]

Species

  • H. guayasensis Hoffstetter 1952
  • H. chimborazi Proaño 1922
  • H. waringi Holland 1920

Taxonomical revision

Haplomastodon was named by Hoffstetter in 1950. It was assigned to Gomphotheriidae by Carroll (1988). Researchers from Rio de Janeiro University proposed in 2013 that all Haplomastodon species should be reassigned to one single species, Notiomastodon platensis.[2]

Distribution

Main page: Biology:List of gomphothere fossils in South America

References

  1. Paleobiology database: Haplomastodon basic info
  2. 2.0 2.1 Mothé, Dimila; Avilla, Leonardo S.; Cozzuol, Mário; Winck, Gisele R. (25 October 2012). "Taxonomic revision of the Quaternary gomphotheres (Mammalia: Proboscidea: Gomphotheriidae) from the South American lowlands". Quaternary International 276-277: 2–7. doi:10.1016/j.quaint.2011.05.018. Bibcode2012QuInt.276....2M. 
  3. Mothé, Dimila; dos Santos Avilla, Leonardo; Asevedo, Lidiane; Borges-Silva, Leon; Rosas, Mariane; Labarca Encina, Rafael; Souberlich, Ricardo; Soibelzon, Esteban et al. (30 September 2016). "Sixty years after 'The mastodonts of Brazil': The state of the art of South American proboscideans (Proboscidea, Gomphotheriidae)". Quaternary International 443: 52–64. doi:10.1016/j.quaint.2016.08.028. 
  4. Álvarez, B.B. (1974). "Los Mamíferos Fósiles del Cuaternario de Arroyo Toropi, Corrientes (Argentina)". Ameghiniana 11 (3): 295–311. 
  5. Soatá in the Paleobiology database

Further reading

  • Ranzi, Alceu. Paleoecologia da Amazonia - Megafauna do Pleistoceno. Florianópolis,. Editora da UFSC, 2000.

Wikidata ☰ Q11682338 entry