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    https://en.wikipedia.org › wiki › Largest_prehistoric_animals

    Largest prehistoric animals - Wikipedia

    Overview

    The largest prehistoric animals include both vertebrate and invertebrate species. Many of them are described below, along with their typical range of size (for the general dates of extinction, see the link to each). Many species mention… 展开

    Non-mammalian synapsids (Synapsida)

    The herbivorous Alierasaurus was the largest caseid and the largest amniote to have lived at the time, with an estimated length around 6–7 m (20–23 ft). Cotylorhynchus hancocki is also large, with an estimated len… 展开

    Mammals (Mammalia)

    The largest 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 3 in) and an estimated mass … 展开

    What is the largest bird in the world?
    The largest known-ever Cariamiformeand largest phorusrhacidor "terror bird" (highly predatory, flightless birds of America) was Brontornis, which was about 175 cm (69 in) tall at the shoulder, could raise its head 2.8 m (9 ft 2 in) above the ground and could have weighed as much as 400 kg (880 lb).
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