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Eobaatarid
Eobaataridae is a family of fossil mammals within the order Multituberculata. Remains are known from the Lower Cretaceous of Europe and Asia. They are among the most derived representatives of the informal suborder "Plagiaulacida", and closely related to Cimolodonta. Most eobaatarids are only known from isolated teeth, though several reasonably complete members are known, including ''Sinobaatar'' and ''Jeholbaatar''. The body of ''Sinobaatar'' is generalised, while ''Jeholbaatar'' displays clear adaptations for scansoriality (climbing) due to its elongated digits. Due to the morphology of the cheek teeth, ''Eobaatar'' and ''Jeholbaatar'' are inferred to be omnivorous, likely feeding on plants and invertebrates. ''Indobaatar'' from the Early Jurassic Kota Formation has been suggested to be the earliest known multituberculate, let alone the earliest eobaatarid, and may stretch the eobaatarid-cimolodontan group much earlier than previously thought. However its referral to the family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indobaatar
Eobaataridae is a family of fossil mammals within the order Multituberculata. Remains are known from the Lower Cretaceous of Europe and Asia. They are among the most derived representatives of the informal suborder "Plagiaulacida", and closely related to Cimolodonta. Most eobaatarids are only known from isolated teeth, though several reasonably complete members are known, including '' Sinobaatar'' and '' Jeholbaatar''. The body of ''Sinobaatar'' is generalised, while ''Jeholbaatar'' displays clear adaptations for scansoriality (climbing) due to its elongated digits. Due to the morphology of the cheek teeth, ''Eobaatar'' and ''Jeholbaatar'' are inferred to be omnivorous, likely feeding on plants and invertebrates. '' Indobaatar'' from the Early Jurassic Kota Formation has been suggested to be the earliest known multituberculate, let alone the earliest eobaatarid, and may stretch the eobaatarid-cimolodontan group much earlier than previously thought. However its referral to the fami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeholbaatar
Eobaataridae is a family of fossil mammals within the order Multituberculata. Remains are known from the Lower Cretaceous of Europe and Asia. They are among the most derived representatives of the informal suborder "Plagiaulacida", and closely related to Cimolodonta. Most eobaatarids are only known from isolated teeth, though several reasonably complete members are known, including '' Sinobaatar'' and '' Jeholbaatar''. The body of ''Sinobaatar'' is generalised, while ''Jeholbaatar'' displays clear adaptations for scansoriality (climbing) due to its elongated digits. Due to the morphology of the cheek teeth, ''Eobaatar'' and ''Jeholbaatar'' are inferred to be omnivorous, likely feeding on plants and invertebrates. ''Indobaatar'' from the Early Jurassic Kota Formation has been suggested to be the earliest known multituberculate, let alone the earliest eobaatarid, and may stretch the eobaatarid-cimolodontan group much earlier than previously thought. However its referral to the famil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinobaatar
''Sinobaatar'' is a genus of extinct mammal from the Lower Cretaceous of China. It is categorized within the also extinct order Multituberculata and among these it belongs to the plagiaulacid lineage (a possible infraorder). ''Sinobaatar'' was a small herbivore during the Mesozoic era, commonly called "the age of the dinosaurs". The genus was named by Hu Y. and Wang Y. in 2002. Three species have been described. It has been found in Lower Cretaceous strata of the Yixian Formation in Liaoning, China. According to Hu & Wang (2002), " e dental features of ''Sinobaatar'' show again that eobaatarids are obviously intermediate between Late Jurassic multituberculates and the later forms". Many Multituberculata are only known from teeth, but the type specimen of ''Sinobaatar'' is a reasonably complete skeleton. ''Sinobaatar'' was eaten, at least on occasion, by the feathered dinosaur ''Sinosauropteryx prima'' (Hurum ''et al.'' 2006). Etymology The name ''Sinobaatar'' is a Latin and M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hakusanobaatar
''Hakusanobaatar'' is an extinct genus of eobaatarid multituberculate which existed in Japan, during the early Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of .... References Cretaceous mammals Multituberculates Fossil taxa described in 2008 Fossils of Japan Prehistoric mammal genera {{cretaceous-mammal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heishanobaatar
''Heishanobaatar'' ("Heishan hero" from Chinese 黑山 (Hēishān), " Heishan" + Mongolian baatar, "hero") is an extinct genus of eobaatarid multituberculate which existed in Shahai and Fuxin formations, northeastern China, during the early Cretaceous ( Aptian/Albian The Albian is both an age of the geologic timescale and a stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early/Lower Cretaceous Epoch/ Series. Its approximate time range is 113.0 ± 1.0 Ma to 100.5 ± 0 ... age). It was first named by Nao Kusuhashi, Yaoming Hu, Yuanqing Wang, Takeshi Setoguchi and Hiroshige Marsuoka in 2010 and the type species is ''Heishanobaatar triangulus''. Known from dentaries, lower incisors, and premolars, ''Heishanobaatar'' is distinguished by its laterally triangular third premolar, from which its species name is derived. Its referral to Eobaataridae was considered questionable by Kusuhashi et al. 2019. References Cretaceous mammals Mul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iberica (mammal)
''Iberica'' is an extinct genus of eobaatarid or a possible plagiaulacid multituberculate which existed in what is now Galve, Spain, during the early Cretaceous (late Hauterivian-early Barremian The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 121.4 ± 1.0 Ma). It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is precede ... age). It was first named by Ainara Badiola, José Ignacio Canudo and Gloria Cuenca-Bescós in 2011 and the type species is ''Iberica hahni''. References Cretaceous mammals Multituberculates Fossil taxa described in 2011 Prehistoric mammals of Europe Prehistoric mammal genera {{cretaceous-mammal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liaobaatar
''Liaobaatar changi'' is a multituberculate which existed in China during the lower Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ... period. It is the only species in the genus ''Liaobaatar''. Etymology The name ''Liaobaatar'' indicates the site where the material referred to this genus has been discovered, the Province of Liaoning in China, plus the Mongolian suffix "baatar"= hero often used for multituberculates classification. References Multituberculates Cretaceous mammals Fossil taxa described in 2009 Prehistoric animals of China Prehistoric mammal genera {{cretaceous-mammal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous
The Early Cretaceous ( geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 145 Ma to 100.5 Ma. Geology Proposals for the exact age of the Barremian-Aptian boundary ranged from 126 to 117 Ma until recently (as of 2019), but based on drillholes in Svalbard the defining early Aptian Oceanic Anoxic Event 1a (OAE1a) was carbon isotope dated to 123.1±0.3 Ma, limiting the possible range for the boundary to c. 122–121 Ma. There is a possible link between this anoxic event and a series of Early Cretaceous large igneous provinces (LIP). The Ontong Java-Manihiki-Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. The Ontong Java Plateau today covers an area of 1,860,000 km2. In the Indian Ocean another LIP began to form at c. 120 Ma, the Kerguelen P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area of , about 30% of Earth's total land area and 8.7% of Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Its 4.7 billion people constitute roughly 60% of the world's population. In general terms, Asia is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean, and on the north by the Arctic Ocean. The border of Asia with Europe is a historical and cultural construct, as there is no clear physical and geographical separation between them. It is somewhat arbitrary and has moved since its first conception in classical antiquity. The division of Eurasia into two continents reflects East–West cultural, linguistic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagiaulacida
Plagiaulacida is a group of extinct multituberculate mammals. Multituberculates were among the most common mammals of the Mesozoic, "the age of the dinosaurs". Plagiaulacids are a paraphyletic grouping, containing all multituberculates that lie outside of the advanced group Cimolodonta. They ranged from the Middle Jurassic Period to the early Late Cretaceous of the northern hemisphere. During the Cenomanian, they were replaced by the more advanced cimolodontans. Kielan-Jaworowska and Hurum (2001) divides “Plagiaulacida” into three informal lineages, the paulchoffatiids, the plagiaulicids, and the allodontids. Allodontid line The Allodontid line may be a superfamily, Allodontoidea. Both allodontids and paulchoffatiids (below) were among the most basal of the plagiaulacids. The Allodontid line contains: The family Allodontidae is known from two genera from the Upper Jurassic Morrison Formation of North America. The family Zofiabaataridae contains a single genus, '' Zofia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kota Formation
The Kota Formation is a geological formation in India. The precise age of Kota Formation are uncertain, but it dates from the Early to Middle Jurassic, and is split into a Lower Member and Upper Member.Prasad GVR, and Manhas BK. 2007A new docodont mammal from the Jurassic Kota Formation of India Palaeontologia electronica, 10.2: 1-11 The lower member is thought to be Hettangian-Pliensbachian.Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Jurassic, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 534–535. . While the upper unit is thought to be Toarcian, but may possibly extend into the Aalenian. It conformably overlies the Dharmaram Formation which is Late Triassic to earliest Jurassic and is unconformably overlain by the Early Cretaceous Gangapur Formation. The lower member is approximately 100 m thick while the upper member is 490 m thick. Both subunits primari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cimolodonta
Cimolodonta is a taxon of extinct mammals that lived from the Cretaceous to the Eocene. They were some of the more derived members of the extinct order Multituberculata. They probably lived something of a rodent-like existence until their ecological niche was assumed by true rodents. The more basal multituberculates are found in a different suborder, "Plagiaulacida", a paraphyletic group containing all non cimolodontan multituberculates. Cimolodonta is apparently a natural (monophyletic) suborder. Remains have been identified from across the Northern Hemisphere. They first appeared during the Aptian, and completely replaced the more primitive plagiaulacidans by the early Late Cretaceous. The taxon is recognized as the informal Paracimexomys group and the superfamilies Djadochtatherioidea, Taeniolabidoidea, and Ptilodontoidea. Additionally, and of uncertain affinities, are the families Cimolomyidae, Boffiidae, Eucosmodontidae, Kogaionidae, Microcosmodontidae and the two genera ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
