Type of R. giganticus, Paleozoological Museum of China
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
†Eutriconodonta (?)
Family:
†Gobiconodontidae
Genus:
†Repenomamus Li et al., 2001
Type species
†Repenomamus robustus
Li et al., 2001[1]
Species
†Repenomamus robustus Li et al., 2000
†Repenomamus giganticus Hu et al., 2005
Repenomamus (Latin: "reptile" (reptilis), "mammal" (mammalis)[2]) is a genus of opossum- to badger-sized gobiconodontid[3] mammal containing two species, Repenomamus robustus and Repenomamus giganticus. Both species are known from fossils found in China that date to the early Cretaceous period, about 125-123.2 million years ago. R. robustus is one of several Mesozoic mammals[7] for which there is good evidence that it fed on vertebrates, including dinosaurs. Though it is not entirely clear whether or not these animals primarily hunted live dinosaurs or scavenged dead ones, evidence for the former is present in fossilized remains showcasing the results of what was most likely a predation attempt by R. robustus directed at a specimen of the dinosaur Psittacosaurus lujiatunensis.[8]R. giganticus is among the largest mammals known from the Mesozoic era, only surpassed by Patagomaia.
^Li; et al. (2001). "A new family of primitive mammal from the Mesozoic of western Liaoning, China". Chinese Science Bulletin. 46 (9): 782–785. Bibcode:2001ChSBu..46..782L. doi:10.1007/bf03187223. S2CID 129025369.
^"Glossary. American Museum of Natural History". Archived from the original on 20 November 2021.
^Marisol Montellano; James A. Hopson; James M. Clark (2008). "Late Early Jurassic Mammaliaforms from Huizachal Canyon, Tamaulipas, México". Journal of Vertebrate Paleontology. 28 (4): 1130–1143. Bibcode:2008JVPal..28.1130M. doi:10.1671/0272-4634-28.4.1130. S2CID 128782275.
^Wilson Gregory P, Riedel Jeremy A (2010). "New Specimen Reveals Delta Theroidan Affinities of the North American Late Cretaceous Mammal Nanocuris". Journal of Vertebrate Paleontology. 30 (3): 872–884. Bibcode:2010JVPal..30..872W. doi:10.1080/02724631003762948. S2CID 53524747.
^Christian DE MUIZON, Brigitte LANGE-BADRÉ (2007). "Carnivorous dental adaptations in tribosphenic mammals and phylogenetic reconstruction". Lethaia. 30 (4): 353–366. doi:10.1111/j.1502-3931.1997.tb00481.x.
^Zofia Kielan-Jaworowska, Richard L. Cifelli, Zhe-Xi Luo (2004). "Chapter 12: Metatherians". Mammals from the Age of Dinosaurs: origins, evolution, and structure. New York: Columbia University Press. pp. 241–243. ISBN 978-0-231-11918-4.{{cite book}}: CS1 maint: multiple names: authors list (link)
^Other eutriconodonts and deltatheroidean metatherians have adaptations towards specialised carnivory[4][5][6]
^Han, Gang; Mallon, Jordan C.; Lussier, Aaron J.; Wu, Xiao-Chun; Mitchell, Robert; Li, Ling-Ji (2023-07-18). "An extraordinary fossil captures the struggle for existence during the Mesozoic". Scientific Reports. 13 (1): 11221. doi:10.1038/s41598-023-37545-8. ISSN 2045-2322. PMC 10354204. PMID 37464026.
badger-sized gobiconodontid mammal containing two species, Repenomamus robustus and Repenomamus giganticus. Both species are known from fossils found in...
Jugulator, the deltatheroidans and Cimolestes. Many of these, such as Repenomamus, Jugulator and Cimolestes, were among the largest mammals in their faunal...
therian mammals. In a study about Mesozoic mammalian diets the taxa Repenomamus, Gobiconodon, Argentoconodon, Phascolotherium, Triconodon and Liaoconodon...
eutriconodonts produced fairly large, wolverine-like predators like Repenomamus and Gobiconodon, early therians began to expand into metatherians and...
the largest mammals in Mesozoic faunal assemblages, with forms like Repenomamus and Gobiconodon exceeding 2 kilos. They were among the first mammals...
only from a single lower molar. It is about 20% smaller than that of Repenomamus giganticus but larger than that of other eutriconodonts, making it a...
were small, ranging from the size of a shrew to the badger-like mammal Repenomamus. During the Jurassic and Cretaceous, the remaining non-mammalian cynodonts...
kilograms (31 lb), narrowly beating the previous Mesozoic mammal contender, Repenomamus giganticus. Patagomaia chainko is tentatively described as a therian...
Eomaia, the earliest known metatherian, an intact embryo of a pterosaur, Repenomamus robustus—a 15 kg heavy mammal that ate dinosaurs, Sinornithosaurus millenii...
several speciations towards animalivory, and the larger forms such as Repenomamus, Gobiconodon and Jugulator probably fed on vertebrate prey. Similarly...
largest Mesozoic mammal known, along with other possible giants such as Repenomamus, Schowalteria, and Bubodens. Aside from its size, it is difficult to...
gobiconodont and the largest well-known Mesozoic mammal was Repenomamus. The known adult of Repenomamus giganticus reached a total length of around 1 m (3 ft...
Mesozoic mammals only exceeded by fellow Malagasy gondwanathere Vintana, Repenomamus and Patagomaia. It is depicted in reconstructions as being built somewhat...
gondwanathere from same formation, this body mass is only exceeded by Repenomamus and Patagomaia. 2014 in mammal paleontology Krause, David W.; Hoffmann...
direct evidence of Psittacosaurus as a prey animal. One skeleton of Repenomamus robustus, a large triconodont mammal, is preserved with the remains of...
not certain that they represent a monophyletic group. Examples include Repenomamus. †Multituberculata - incertae sedis. Luo e al. (2002) argue that multituberculates...
incisor pair having become massive and canine-like. Like the larger Repenomamus there might be some evidence of scavenging. In 1978, the species Gobiconodon...
subterranean, arboreal, and aquatic— and the largest known Mesozoic mammal, Repenomamus robustus reached about 1 m (3 ft 3 in) in length and 12–14 kg (26–31 lb)...
specialized it was on insects. This fossil, along with others such as Repenomamus, Volaticotherium, and Castorocauda, challenge the notion that early mammals...
also shows similar adaptations that may also suggest aerial locomotion. Repenomamus, a eutriconodont from the early Cretaceous 130 million years ago, was...
highly ecologically diverse group, including large sized taxa such as Repenomamus that were able to eat small dinosaurs, the arboreal Jeholodens, the aerial...
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