Its name comes from the MISC@1 words -LRB- , `` less '' -RRB- and -LRB- , `` new '' -RRB- and means `` less recent '' because it has NUMBER@1 % fewer modern sea invertebrates than the MISC@2 .

Its name comes from the MISC@1 words -LRB- , `` less '' -RRB- and -LRB- , `` new '' -RRB- and means `` less recent '' , because it has NUMBER@1 % less modern sea invertebrates than the MISC@2 .
