van Geel 1978: Claws varying in greatest length from about 40 μm to 150 μm. Apart from the appreciable variation in size, all specimens of almost identical morphology. Outline resembling a bird's wing. The longest appendages varying in length from 45 μm in the largest observed claws to 9 μm in the smallest. In all claws the appendages diminishing in size towards the proximal end (the original place of attachment with the tarsus), 8-14 in number. The entire surface striate.
van Geel B (1978) A palaeoecological study of Holocene peat bog sections in Germany and the Netherlands, based on the analysis of pollen, spores and macro- and microscopic remains of fungi, algae cormophytes and anymals. Rev. Palaeobot. Palynol. 25:1-120.