<Tr> <Td> unnamed </Td> <Td> <Table> <Tr> <Td> Opisthocoelicaudiinae </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Opisthocoelicaudia </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Alamosaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Saltasaurinae </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Neuquensaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> unnamed </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Saltasaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Rocasaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> Opisthocoelicaudiinae </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Opisthocoelicaudia </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Alamosaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Saltasaurinae </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Neuquensaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> unnamed </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Saltasaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Rocasaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> <Tr> <Td> Opisthocoelicaudiinae </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Opisthocoelicaudia </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Alamosaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> <P> Opisthocoelicaudia </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Alamosaurus </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table>

When did the museum 122 foot long plant eating sauropod the titanosaur roam the earth