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Megaconus information


Megaconus
Temporal range: Callovian
~165 Ma
PreꞒ
O
S
D
C
P
T
J
K
Pg
N
Life restoration of Megaconus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Subclass: Allotheria
Genus: Megaconus
Zhou et al., 2013
Type species
Megaconus mammaliaformis
Zhou et al., 2013

Megaconus is an extinct genus of allotherian mammal from the Middle Jurassic Tiaojishan Formation of Inner Mongolia, China. The type and only species, Megaconus mammaliaformis was first described in the journal Nature in 2013. Megaconus is thought to have been a herbivore that lived on the ground, having a similar posture to modern-day armadillos and rock hyraxes. Megaconus was in its initial description found to be member of a group called Haramiyida. A phylogenetic analysis published along its description suggested that haramiyidans originated before the appearance of true mammals, but in contrast, the later description of the haramiyidan Arboroharamiya in the same issue of Nature indicated that haramyidans were true mammals.[1] If haramiyidans are not mammals, Megaconus would be one of the most basal ("primitive") mammaliaforms to possess fur, and an indicator that fur evolved in the ancestors of mammals and not the mammals themselves.[2] However, later studies cast doubt on the euharamiyidan intrepretation, instead finding it to be a basal allotherian mammal.[3]

  1. ^ Zhou, C. F.; Wu, S.; Martin, T.; Luo, Z. X. (2013). "A Jurassic mammaliaform and the earliest mammalian evolutionary adaptations". Nature. 500 (7461): 163–167. Bibcode:2013Natur.500..163Z. doi:10.1038/nature12429. PMID 23925238. S2CID 4346751.
  2. ^ "Jurassic squirrel's secret is out". The Hindu. August 9, 2013.
  3. ^ Averianov, Alexander O.; Martin, Thomas; Lopatin, Alexey V.; Schultz, Julia A.; Schellhorn, Rico; Krasnolutskii, Sergei; Skutschas, Pavel; Ivantsov, Stepan (May 2021). Hautier, Lionel (ed.). "Multituberculate mammals from the Middle Jurassic of Western Siberia, Russia, and the origin of Multituberculata". Papers in Palaeontology. 7 (2): 769–787. doi:10.1002/spp2.1317. ISSN 2056-2799. S2CID 219067218.

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Megaconus

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China. The type and only species, Megaconus mammaliaformis was first described in the journal Nature in 2013. Megaconus is thought to have been a herbivore...

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Fur

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docodonts, haramiyidans and eutriconodonts, with specimens of Castorocauda, Megaconus and Spinolestes preserving compound follicles with both guard hair and...

Word Count : 2229

Cynodontia

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rate fur was already present in Mammaliaformes such as Castorocauda and Megaconus. Early cynodonts had numerous small foramina on their snout bones, similar...

Word Count : 2095

Castorocauda

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burrowing Pseudotribos, the oldest known eutherian Juramaia. the rat-like Megaconus and the gliding Arboroharamiya. The plant life of the Tiaojishan Formation...

Word Count : 2001

Mammal

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earliest clear evidence of hair or fur is in fossils of Castorocauda and Megaconus, from 164 million years ago in the mid-Jurassic. In the 1950s, it was...

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Mammaliaformes

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Megaconus...

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Eucynodontia

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 279

Evolution of mammals

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fur is in fossils of Castorocauda and Megaconus, from 164M years ago in the mid-Jurassic. As both mammals Megaconus and Castorocauda have a double coat...

Word Count : 15166

Arboroharamiya

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2013 alongside a description of the closely related haramiyidan Megaconus. Unlike Megaconus, which is thought to have been ground-dwelling, Arboroharamiya...

Word Count : 615

Allotheria

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Subclass: †Allotheria Marsh, 1880 Subgroups †Camptomus †Fractinus †?Cifelliodon †Megaconus †Kermackodon †Gondwanatheria ?†Haramiyida †Multituberculata...

Word Count : 534

Adelobasileus

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

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Euharamiyida

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Sineleutherus Woodeatonia ?Allostaffia ?Hahnodontidae Sigogneau-Russell, 1991 ?Megaconus ?Gondwanatheria Arboroharamiyidae Zheng et al., 2013 Arboroharamiya Vilevolodon...

Word Count : 598

Morganucodon

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 2054

Tritylodontidae

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 1620

Morganucodonta

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 1231

Mammaliamorpha

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 233

Probainognathia

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 317

Haramiyida

Last Update:

Arboroharamiya (Haramiyida, Mammalia): A Comparison with Other Haramiyidans and Megaconus and Implications for Mammalian Evolution". PLOS ONE. 9 (12): e113847....

Word Count : 1529

Docodonta

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 4085

Megazostrodon

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 912

Tiaojishan Formation

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furculiferum A gliding euharamiyidan similar in lifestyle to a colugo. Megaconus M. mammaliaformis Inner Mongolia Daohugou bed One specimen An eleutherodontid...

Word Count : 2481

Prozostrodontia

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 382

Ecteninion

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 229

Hahnodon

Last Update:

Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 262

Chiniquodontidae

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 214

Probainognathus

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 1837

Epicynodontia

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 145

Dvinia

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 157

Kayentatherium

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 551

Lepagia

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Arboroharamiya Baidabatyr? Butlerodon Cryoharamiya Kermackodon? Maiopatagium Megaconus? Qishou Sharypovoia Shenshou Sineleutherus Vilevolodon Woodeatonia Xianshou...

Word Count : 266

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