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Contents

   



(Top)
 


1 Taxonomy and phylogeny  



1.1  Taxonomy  





1.2  Phylogeny  







2 References  














Taeniodonta






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Taeniodonta
Temporal range: 70.0–39.7 Ma

O

S

D

C

P

T

J

K

Pg

N

Late Cretaceous - Middle Eocene[1]
species from family Stylinodontidae
skull of Conoryctes comma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Eutheria
Infraclass: Placentalia (?)
Order: Taeniodonta
Cope, 1876[2]
Families
Synonyms

list of synonyms:

  • Calamodontia (Haeckel, 1895)
  • Ganodonta (Wortman, 1896)
  • Stylinodontia (Haeckel, 1895)
  • Stylinodontidae (Marsh, 1875)
  • Taeniodontidae (Szalay, 1977)

Taeniodonta ("banded teeth") is an extinct orderofeutherian mammals, that lived in North America and Europe from the late Cretaceous (Maastrichtian) to middle Eocene.[3][4][5]

Taeniodonts evolved quickly into highly specialized digging animals, and varied greatly in size, from rat-sized to species as large as a bear. Later species developed prominent front teeth and huge claws for digging and rooting. Some genera, like Stylinodon, had ever-growing teeth.[6] The scarcity of taeniodont fossils can be explained by the fact that these animals probably lived in dry or arid climates unconductive to fossilization.

According to 2022 studies of Bertrand, O. C. and Sarah L. Shelley, taeniodonts are identified to be a basal placental mammal.[7][8] Genera Ambilestes, Procerberus and Alveugena are the immediate outgroup to Taeniodonta.[9]

Taxonomy and phylogeny[edit]

Taxonomy[edit]

From Thomas E. Williamson and Stephen L. Brusatte (2013):[10]

Phylogeny[edit]

 Placentalia 

Atlantogenata

Boreoeutheria

Palaeoryctida

Ambilestes

Procerberidae

Alveugena

 †Taeniodonta 
 †Schowalteria 

Schowalteria clemensi

 †Onychodectidae 
 †Onychodectes 
 †Onychodectes tisonensis 

Onychodectes tisonensis rarus

Onychodectes tisonensis tisonensis

 †Conoryctidae 
 †Conoryctinae 
 †Conoryctini 
 †Huerfanodon 

Huerfanodon heilprinianus

Huerfanodon polecatensis

Huerfanodon torrejonius

 †Conoryctes 

Conoryctes comma

 †Conoryctellini 
 †Conoryctella 

Conoryctella dragonensis

Conoryctella pattersoni

 †Eurodontinae 
 †Eurodon 

Eurodon silveirinhensis

 †Stylinodontidae 
 †Wortmaniinae 
 †Wortmania 

Wortmania otariidens

 †Stylinodontinae 
 †Psittacotheriini 
 †Psittacotherium 

Psittacotherium multifragum

 †Stylinodontini 
 †Stylinodon 

Stylinodon inexplicatus

Stylinodon mirus

 †Ectoganini 
 †Ectoganus 

Ectoganus bighornensis

Ectoganus copei

Ectoganus gliriformis

Ectoganus lobdelli

References[edit]

  1. ^ "Taeniodonta". paleobiodb.org. Retrieved 2021-08-13.
  • ^ Cope, E. D. (1876.) "On the Taeniodonta, a new group of Eocene mammals." Proceedings of the National Academy of Sciences Philadelphia 28:39.
  • ^  One or more of the preceding sentences incorporates text from a publication now in the public domainChisholm, Hugh, ed. (1911). "Ganodonta". Encyclopædia Britannica. Vol. 11 (11th ed.). Cambridge University Press. p. 454.
  • ^ Cox, Barry; Savage, R.J.G.; Gardiner, Brian; Dixon, Dougal (1988). "Early rooters and browsers". Macmillan Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. Macmillan London Limited. ISBN 978-0-333-48699-3.
  • ^ McKenna, Malcolm C.; Bell, Susan K. (1997). Classification of Mammals Above the Species Level. New York: Columbia University Press. ISBN 978-0-231-11012-9. Retrieved 16 March 2015.
  • ^ Cox et al. 1988, p. 237
  • ^ Bertrand, O. C.; Shelley, S. L.; Williamson, T. E.; Wible, J. R.; Chester, S. G. B.; Flynn, J. J.; Holbrook, L. T.; Lyson, T. R.; Meng, J.; Miller, I. M.; Püschel, H. P.; Smith, T.; Spaulding, M.; Tseng, Z. J.; Brusatte, S. L. (2022). "Brawn before brains in placental mammals after the end-Cretaceous extinction". Science. 376 (6588): 80–85. Bibcode:2022Sci...376...80B. doi:10.1126/science.abl5584. hdl:20.500.11820/d7fb8c6e-886e-4c1d-9977-0cd6406fda20.
  • ^ Sarah L. Shelley (2022.) "The phylogeny of Paleocene mammals and the evolution of Placentalia", in "The Society of Vertebrate Paleontology 82nd annual meeting"
  • ^ Rook & Hunter 2013
  • ^ Williamson, T. E.; Brusatte, S. L. (2013). Viriot, Laurent (ed.). "New Specimens of the Rare Taeniodont Wortmania (Mammalia: Eutheria) from the San Juan Basin of New Mexico and Comments on the Phylogeny and Functional Morphology of "Archaic" Mammals". PLOS ONE. 8 (9): e75886. Bibcode:2013PLoSO...875886W. doi:10.1371/journal.pone.0075886. PMC 3786969. PMID 24098738.
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    Categories: 
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    This page was last edited on 28 June 2024, at 22:44 (UTC).

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