* European shares fall with Cyprus still a concern * Uncertainty over Europe overshadows U.S. housing data * German government bonds rise, periphery bonds dip * Crude oil extends declines in afternoon on euro woes By Ryan Vlastelica NEW YORK, March 19 (Reuters) - Global stock markets fell on Tuesday, extending the previous day's decline as investors continued to fret about Cyprus and the possible effect on the euro zone should it collapse. Markets have been volatile, with U.S. stocks briefly rising in early trading as investors used strong housing data as an opportunity to pick up beaten down shares. In afternoon trading, however, shares returned to negative territory. European stocks, along with the euro and oil, had been pressured on concerns over the risk of failure for a bailout deal aimed at saving Cyprus from default and its banks from collapse. The Cypriot parliament rejected plans agreed by euro zone officials over the weekend to part-fund a 10 billion euro rescue of the island by seizing between 6.75 percent and 9.9 percent of deposits in Cypriot banks. A failure for parliament to come to an agreement would put the bailout in jeopardy and raise the risk of default. "This could be a flash in the pan but it is a reminder to investors that the situation in Europe is not resolved. It could be the start of a spring correction just as we saw in 2011 and 2012," Andrew Milligan, global head of strategy for Standard Life Investments in Edinburgh, said in a note. The euro fell and hit a session low against the dollar, while European shares closed 0.4 percent lower. London's FTSE 100 (FTSE: ^FTSE - news) slipped 0.3 percent and Paris's CAC-40 fell 1.3 percent while Frankfurt's DAX (Xetra: ^GDAXI - news) fell 0.8 percent. MSCI (NYSE: MSCI - news) 's measure of global stock markets was off 0.5 percent. In the United States, the Dow Jones (DJI: ^DJI - news) industrial average was down 33.07 points, or 0.23 percent, at 14,418.99. The Standard & Poor's 500 Index was down 8.31 points, or 0.54 percent, at 1,543.79. The Nasdaq Composite Index was down 20.61 points, or 0.64 percent, at 3,216.98. The early gains in U.S. stocks came on data showing that groundbreaking for new homes climbed in February, a sign the nation's housing market recovery was gathering steam. According to the latest Reuters poll of analysts, the S&P 500 is expected soon to hit a record high, though the blistering rise in equities so far in 2013 is unlikely to last. BUND BOUNCE The plan to seize deposits in Cyprus shredded confidence in the 100,000 euro ($129,600) guarantee on savings offered across the European Union and raised fears of bank runs in other debt-strained countries, putting safe-haven German government bonds again in demand. The Bund future built gains steadily through the morning before solid ZEW data tempered some of the demand, leaving it up 0.6 percent at 144.74. The benchmark 10-year U.S. Treasury note was up 15/32, the yield at 1.9026 percent. "We are just waiting for another headline out of Cyprus," one trader said, adding that buying Bunds "is the only trade to have on." ECB BACKSTOP While Cyprus' problems are threatening to disrupt the calm brought to the bloc over the last eight months by the European Central Bank's promise to protect troubled countries, that guarantee has also kept the market reaction muted. With stock markets in many parts of the world at or near long-term highs, analysts are taking the drops of the past few sessions in stride. With the exception of German government bonds, the knee-jerk flight to safety seen on Monday was showing signs of subsiding. The cost of insuring the debt of southern euro zone countries against default via credit default swaps was virtually unchanged at midday, and the dollar rose 0.3 percent against a basket of major currencies after Monday's rise. In Asian trading, Japanese stocks jumped 2 percent and the recovery in general risk sentiment supported Asian credit markets, narrowing the spread on the iTraxx Asia ex-Japan investment-grade index by five basis points. Brent crude oil remained sensitive to the jitters, however, falling 2 percent to $107.40. If the situation in the euro zone deteriorates again, analysts warn it could affect the health of the global economy.