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This is an incomplete list of prehistoric mammals. It does not include extant mammals or recently extinct mammals. For extinct primate species, see: ...
List of prehistoric brittle stars; List of prehistoric bryozoan genera; List of prehistoric chitons; List of prehistoric foraminifera genera; List of ichthyosaur genera; List of marine gastropod genera in the fossil record; List of plesiosaur genera; List of prehistoric malacostracans; List of prehistoric medusozoan genera; List of prehistoric ...
Figure 1:In mammals, the quadrate and articular bones are small and part of the middle ear; the lower jaw consists only of dentary bone.. While living mammal species can be identified by the presence of milk-producing mammary glands in the females, other features are required when classifying fossils, because mammary glands and other soft-tissue features are not visible in fossils.
This category includes prehistoric mammals known only from fossil records. Articles placed directly in this category do not easily fall into one of the given subcategories. Articles placed directly in this category do not easily fall into one of the given subcategories.
The second largest prehistoric pinniped is Gomphotaria pugnax with a skull length of nearly 47 cm (19 in). [153] One of the largest of prehistoric otariids is Thalassoleon, comparable in size to the biggest extant fur seals. An estimated weight of T. mexicanus is no less than 295–318 kg (650–701 lb). [156]
Mastodons — a prehistoric mammal related to mammoths and current-day elephants — roamed the earth as far back as 23 million years ago. Mastodons went extinct about 10,000 years ago but their ...
Prehistoric Artiodactyla of North America (2 C, 2 P) Pages in category "Prehistoric mammals of North America" The following 142 pages are in this category, out of 142 total.
Map of North America. This is a list of North American animals extinct in the Holocene that covers extinctions from the Holocene epoch, a geologic epoch that began about 11,650 years before present (about 9700 BCE) [A] and continues to the present day.
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