The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 412
... known ; as in many other ungulate groups , trend to large size ( to that of ele- phants ) ; length of skull to 60 cm . * Order Xenungulata ( xenungulates ) . Known only from a few fragmentary fossils from upper Paleocene of South Ameri ...
... known ; as in many other ungulate groups , trend to large size ( to that of ele- phants ) ; length of skull to 60 cm . * Order Xenungulata ( xenungulates ) . Known only from a few fragmentary fossils from upper Paleocene of South Ameri ...
Page 543
... known from the Miocene of Pata- gonia . It is the only known genus referable to the family Necrolestidae ( superfamily Necrolestoidea ) , probably basically related to the Borhyaenoidea or Didelphoidea . Caenolestoids . The South ...
... known from the Miocene of Pata- gonia . It is the only known genus referable to the family Necrolestidae ( superfamily Necrolestoidea ) , probably basically related to the Borhyaenoidea or Didelphoidea . Caenolestoids . The South ...
Page 544
... known , and a species of Bettongia and an undescribed genus occur in the Middle Tertiary of South Australia . The most widely known marsupials are the kangaroos and their relatives ( family Macropodidae ) . The gigantic forms during the ...
... known , and a species of Bettongia and an undescribed genus occur in the Middle Tertiary of South Australia . The most widely known marsupials are the kangaroos and their relatives ( family Macropodidae ) . The gigantic forms during the ...
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