<div>Dear typologists,</div><div> </div><div>I vaguely recall having read or heard that it has been claimed that small language families and language isolates have a greater probability of possessing typologically unusual and rare features, however, I cannot locate any references discussing this issue (the two volumes of Rara et Rarissima published in 2010 do not, as far as I can tell). I would be grateful for any references that either espouse such a claim or explicitly disconfirm it.</div><div> </div><div>Thanks in advance!</div><div> </div><div>Peter</div><div> </div><div>-- </div><div>Peter Arkadiev, PhD Habil.</div><div>https://peterarkadiev.github.io/</div><div> </div>