{"refrec":{"BRefID":218584,"RR":"<b>Evans, J.W.</b> (1968). The effect of rock hardness and other factors on the shape of the burrow of the rock-boring clam, <i>Penitella penita</i>. <i>Palaeogeogr. Palaeoclimatol. Palaeoecol. 4(4)</i>: 271-278. <a href=\"http://dx.doi.org/10.1016/0031-0182(68)90094-1\" target=\"_blank\">http://dx.doi.org/10.1016/0031-0182(68)90094-1</a>","BEntID":210327,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Palaeogeogr. Palaeoclimatol. Palaeoecol. 4(4)</i>: 271-278. <a href=\"http://dx.doi.org/10.1016/0031-0182(68)90094-1\" target=\"_blank\">http://dx.doi.org/10.1016/0031-0182(68)90094-1</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Evans, J.W.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Evans, J.W.","Englishabstract":"Penitella penita, a west coast rock-boring clam, forms a conical burrow in the rock the shape of which is controlled by a number of environmental variables. 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