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Livro de Resumos - Dinossauros do Maranhão

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Paleontologia 195<br />

Contribuição ao estu<strong>do</strong> <strong>do</strong>s Gomphotheriidae (Mammalia, Probosci<strong>de</strong>a) <strong>do</strong><br />

Quaternário <strong>do</strong> Esta<strong>do</strong> <strong>do</strong> Rio Gran<strong>de</strong> <strong>do</strong> Sul, Brasil<br />

1 Departamento <strong>de</strong> Paleontologia e Estratigrafia, Instituto <strong>de</strong> Geociências, Universida<strong>de</strong> Fe<strong>de</strong>ral <strong>do</strong> Rio Gran<strong>de</strong><br />

<strong>do</strong> Sul (UFRGS), Avenida Bento Gonçalves, 9500 - Campus <strong>do</strong> Vale - 91509-900, Porto Alegre, RS, Brasil.<br />

2 Departamento <strong>de</strong> Ciências Biológicas, Universida<strong>de</strong> Regional Integrada <strong>do</strong> Alto Uruguai e das Missões (URI),<br />

Rua Assis Brasil, 709 - Itapagé - 98400-000, Fre<strong>de</strong>rico Westphalen, RS, Brasil.<br />

E-mail: gabiga<strong>de</strong>ns@yahoo.com.br<br />

Gabrielli Teresa Ga<strong>de</strong>ns Marcon 1,2<br />

A revisão <strong>de</strong> espécimes já <strong>de</strong>scritos e o estu<strong>do</strong> <strong>de</strong> novos espécimes, provenientes <strong>do</strong>s<br />

municípios <strong>de</strong> Dom Pedrito, Iraí, Itaqui, Nova Palma, Osório, Pântano Gran<strong>de</strong>, Quaraí,<br />

Rosário <strong>do</strong> Sul, Santa Vitória <strong>do</strong> Palmar e São Gabriel permitiram i<strong>de</strong>ntificar a espécie<br />

Stegomasto<strong>do</strong>n waringi para o Quaternário <strong>do</strong> Rio Gran<strong>de</strong> <strong>do</strong> Sul. Observou-se ainda um<br />

tamanho relativamente maior, e uma maior complexida<strong>de</strong> relativa no padrão <strong>de</strong> <strong>de</strong>sgaste<br />

oclusal <strong>do</strong>s molares da espécie neste Esta<strong>do</strong>, quan<strong>do</strong> compara<strong>do</strong>s com <strong>de</strong>ntes homólogos<br />

<strong>do</strong>s <strong>de</strong>mais esta<strong>do</strong>s <strong>do</strong> Brasil.<br />

Paleovertebra<strong>do</strong>s

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