Meridiolestida

Meridiolestida is a clade of non-therian mammals from South America, Antarctica[1] and Africa. It is generally classified within Dryolestida, barring one study recovering them as the sister taxa to spalacotheriid symmetrodonts.[2] However, more recent studies have stuck to the dryolestoid interpretation.[3][4] They differ from northern dryolestoids in the absence of a parastylar hook on the molariform teeth and the lack of a Meckelian groove.

Meridiolestida
Temporal range: Turonian–Miocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Trechnotheria
Clade: Cladotheria
Superorder: †Dryolestoidea
Order: †Dryolestida
Clade: †Meridiolestida
Rougier, 2011
Subgroups

See text

Taxa

References
  1. http://www.aps-polar.org/paper/2019/30/03/A190814000002/full
  2. Averianov, Alexander O.; Martin, Thomas; Lopatin, Alexey 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.
  3. Martinelli, Agustin; Chornogubsky, Laura; Abello, María; I. Goin, Francisco; Reguero, Marcelo (2014). The first non-therian dryolestoid from Antarctica. 2014 SCAR Open Science Conference. Aukland, New Zealand. doi:10.13140/2.1.2770.8805.
  4. O’Meara, Rachel N.; Thompson, Richard S. (2014). "Were There Miocene Meridiolestidans? Assessing the Phylogenetic Placement of Necrolestes patagonensis and the Presence of a 40 Million Year Meridiolestidan Ghost Lineage". Journal of Mammalian Evolution. 21 (3): 271–284. doi:10.1007/s10914-013-9252-3.
  5. Guillermo W. Rougier, John R. Wible, Robin M. D. Beck and Sebastian Apesteguía (2012). "The Miocene mammal Necrolestes demonstrates the survival of a Mesozoic nontherian lineage into the late Cenozoic of South America". Proceedings of the National Academy of Sciences of the United States of America. 109 (49): 20053–20058. doi:10.1073/pnas.1212997109. PMC 3523863. PMID 23169652.CS1 maint: uses authors parameter (link)
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