From Wikipedia, the free encyclopedia
Order of marsupials
Paucituberculata is an order of
South American
marsupials . Although currently represented only by the seven living species of
shrew opossums , this order was formerly much more diverse, with more than 60 extinct species named from the fossil record, particularly from the late Oligocene to early Miocene epochs.
[1]
[2] The earliest paucituberculatans date to the
late Paleocene (
Itaboraian
South American land mammal age ).
[3] The group went through a pronounced decline in the middle
Miocene epoch, which resulted in the extinction of all families of this order except for the living
shrew opossums (Caenolestidae). Extinct families of Paucituberculatans include
Pichipilidae ,
Palaeothentidae , and
Abderitidae .
[2]
Classification
It is one of two clades of
Ameridelphia , a
paraphyletic group; genetic studies have shown these animals to be a
sister group to
Australidelphia (i.e.,
Didelphimorphia branched off first).
[4]
[5]
The Paucituberculata were once considered to be closely related to South American
polydolopimorph metatherians, however phylogenetic analyses have found this is not true.
[3]
Subdivision
The order is subdivided into:
[6]
[7]
Phylogeny of Paucituberculata
[8]
[9]
See also
References
^ Abello, María A. (2013).
"Analysis of dental homologies and phylogeny of Paucituberculata (Mammalia: Marsupialia)" . Biological Journal of the Linnean Society . 109 (2): 441–465.
doi :
10.1111/bij.12048 .
hdl :
11336/13571 .
^
a
b
c Engelman, Russell K.; Anaya, Federico; Croft, Darin A. (2017).
"New palaeothentid marsupials (Paucituberculata) from the middle Miocene of Quebrada Honda, Bolivia and their implications for the palaeoecology, decline, and extinction of the Palaeothentoidea" . Journal of Systematic Palaeontology . 15 (10): 787–820.
doi :
10.1080/14772019.2016.1240112 .
S2CID
88758358 .
^
a
b
c
d Goin, Francisco J.; Candela, Adriana M.; Abello, M. Alejandra; Oliveira, Edison V. (2009).
"Earliest South American paucituberculatans and their significance in the understanding of 'pseudodiprotodont' marsupial radiations" . Zoological Journal of the Linnean Society . 155 (4): 867–884.
doi :
10.1111/j.1096-3642.2008.00471.x .
^ Schiewe, Jessie (2010-07-28).
"Australia's marsupials originated in what is now South America, study says" .
Los Angeles Times .
Archived from the original on 1 August 2010. Retrieved 2010-08-01 .
^ Nilsson, M. A.; Churakov, G.; Sommer, M.; Van Tran, N.; Zemann, A.; Brosius, J.; Schmitz, J. (2010-07-27).
"Tracking Marsupial Evolution Using Archaic Genomic Retroposon Insertions" .
PLOS Biology . 8 (7): e1000436.
doi :
10.1371/journal.pbio.1000436 .
PMC
2910653 .
PMID
20668664 .
^ Abello, 2007, p.410
^
Paucituberculata at
Fossilworks .org
^ Alejandra Abello, María; Martin, Gabriel M.; Cardoso, Yamila (2021).
"Review of the extinct 'shrew-opossums' (Marsupialia: Caenolestidae), with descriptions of two new genera and three new species from the Early Miocene of southern South America" . Zoological Journal of the Linnean Society . 193 (2): 464–498.
doi :
10.1093/zoolinnean/zlaa165 .
^ Abello, María Alejandra; Toledo, Nestor; Ortiz-Jaureguizar, Edgardo (2018).
"Evolution of South American Paucituberculata (Metatheria: Marsupialia): adaptive radiation and climate changes at the Eocene- Oligocene boundary" (PDF) . Historical Biology . 32 (4): 476–493.
doi :
10.1080/08912963.2018.1502286 .
^
Palaeothentoidea at
Fossilworks .org
^
Hondathenthes at
Fossilworks .org
^
Paleothentidae at
Fossilworks .org
^ Rincón, Ascanio D.; Shockey, Bruce J.; Anaya, Federico; Solórzano, André (2015). "Palaeothentid Marsupials of the Salla Beds of Bolivia (Late Oligocene): Two New Species and Insights into the Post-Eocene Radiation of Palaeothentoids". Journal of Mammalian Evolution . 22 (4): 455–471.
doi :
10.1007/s10914-015-9295-8 .
S2CID
2940122 .
Bibliography
Yinotheria
Theria
Metatheria (
Marsupial inclusive)
Eutheria (
Placental inclusive)
Xenarthra
Afrotheria
Boreoeutheria
Laurasiatheria
Eulipotyphla (Hedgehogs, shrews, moles and relatives)
Chiroptera (Bats)
Pholidota (Pangolins)
Carnivora (Dogs, cats and relatives)
Perissodactyla (Horses, rhinoceroses and tapirs)
Artiodactyla (Pigs, camels, hippos, deer, buffalo, gazelles, giraffes, whales and dolphins)
Euarchontoglires
Rodentia (Rats, guinea pigs, squirrels, beavers, chinchillas, porcupines, capybaras and relatives)
Lagomorpha (Rabbits, hares and pikas)
Scandentia (Treeshrews)
Dermoptera (Colugos)
Primates (lorises, lemurs, tarsiers, monkeys, apes, humans)