Reply to R. A. Crowson's "Comments on Insecta of the Rhynie Chert" (1985 Entomol. Gener. 11 (1/2): 097-098)
Greenslade, Penelope J. M
Crowson (1985) has resurrected his earlier suggestion (Crowson 1970) that the fossils Rhyniella Hirst & Maulik 1926 (Collembola) and Protacarus Hirst 1923 (Acarina) from the Devonian Rhynie Chert, are recent contaminants and are not genuine components of the Devonian fauna. He made 3 points in support of his argument which I examine here with particular reference to the Collembola, since I am not qualified to comment on the mite. I show that the arguments put forward by Crowson are without foundation and therefore support Kühne & Schlüter's (1985) contention that there is at present no intrinsic proof of the contaminant theory.