Nova espécie de crocodilo chamada 'caçador de Lucy' é identificada na Etiópia

Pesquisadores descreveram uma espécie de crocodilo anteriormente desconhecida que viveu ao lado de ancestrais humanos primitivos na Etiópia há mais de 3 milhões de anos. O animal, formalmente nomeado Crocodylus lucivenator, provavelmente era o predador de topo em seu ecossistema.

O crocodilo media de 3,6 a 4,5 metros de comprimento e pesava até 590 quilos. Ele habitava rios e lagos na região de Hadar durante o mesmo período que o Australopithecus afarensis, a espécie que inclui o famoso fóssil Lucy. O professor da Universidade de Iowa, Christopher Brochu, autor principal do estudo, afirmou que o réptil representava a maior ameaça aos hominídeos da época. "Era o maior predador daquele ecossistema, mais do que leões e hienas", observou ele. Os fósseis analisados para a pesquisa incluem crânios e fragmentos de mandíbula recuperados da Formação Hadar. A espécie apresentava uma protuberância distinta no focinho e um nariz alongado, características que a diferenciavam de outros crocodilos da era. As descobertas aparecem no Journal of Systematic Palaeontology. Os coautores incluem pesquisadores da Universidade do Tennessee, Universidade Estadual do Arizona, Museu Nacional da Etiópia e Universidade de Cambridge.

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