Cryptozoic

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Cryptozoic

(ˌkrɪptəʊˈzəʊɪk)
adj
(Geological Science) of or relating to that part of geological time represented by rocks in which the evidence of life is slight and the life forms are primitive; pre-Phanerozoic
n
(Geological Science) the Cryptozoic the Cryptozoic era

cryptozoic

(ˌkrɪptəʊˈzəʊɪk)
adj
(Zoology) (of animals) living in dark places, such as holes, caves, and beneath stones
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References in periodicals archive ?
For epigeal species, these shelters tend to be in the form of "cryptozoa boards"; flat pieces of timber or ceramic tiles placed on the ground, under which spiders (and other invertebrates) can take refuge (Bowie & Frampton 2004; Hodge & Standen 2006; Lettink & Patrick 2006).
The use of 'cryptozoa boards' to examine the distribution of woodlice (Isopoda) and millipedes (Diplopoda) in a disused limestone quarry.