Absence of ptilodontoidean multituberculates from Asia and its palaeogeographic implications

Autor:	Zofia Kielan-Jaworowska
Rok vydání:	1980
Předmět:	biology Ptilodontoidea Ecology Kryptobaatar Paleontology biology.organism_classification Cretaceous Geography Multituberculata Eutheria Biological dispersal Taeniolabidoidea Ecology Evolution Behavior and Systematics Eucosmodontidae
Zdroj:	Lethaia. 13:169-173
ISSN:	1502-3931 0024-1164
DOI:	10.1111/j.1502-3931.1980.tb01047.x
Popis:	Gobibaatar parvus Kielan-Jaworowska 1970, formerly the only representative of the Ptilodontoidea in Asia, is recognized to be a junior synonym of Kryptobaatar dashzevegi Kielan-Jaworowska 1970 and allocated to the Taeniolabidoidea. Members of the Ptilodontoidea are thus currently unknown in Asian faunas. Chulsanbaataridae Kielan-Jaworowska 1974 is a junior synonym of the Eucosmodontidae Jepsen 1940. The absence of Ptilodontoidea in Asia gives further support to the theory of one-way Late Cretaceous dispersal of mammals from Asia to North America. The Marsupialia and Ptilodontoidea originated in the New World and never reached Asia, whereas the Taeniolabidoidea and Eutheria originated in Asia and dispersed to North America during the Late Cretaceous.
Databáze:	OpenAIRE
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