However, the species is endemic to a very small range and its only known population may be threatened by fire, dieback disease affecting Banksia, and climate change.

Zephyrarchaea marki was described by the arachnologists Michael G. Rix and Mark Harvey in 2012 on the basis of a male specimen collected from Cape Le Grand National Park, Western Australia, in 2009.

[2] The "neck" is 0.56 mm (0.022 in) wide, with the highest point of the pars cephalica (portion of the cephalothorax between the front radial furrows) approaching the posterior third of the head.

Tegular sclerite 1 extends horizontally and is strongly curved in when viewed prolaterally, with a flattened, broadly rounded, paddle-shaped apex.

[2] Zephyrarchaea spiders have relatively uniform and cryptic coloration, generally only showing subtle intraspecific variation in abdominal patterning.

Z. marki can be distinguished from Z. janineae and Z. mainae by the absence of dorsal hump-like tubercles on the abdomen, and from Z. marae and Z. vichickmani by the presence of a proximal tuft of accessory setae on the male chelicerae.

However, the species is endemic to a very small range and its only known population may be threatened by fire, dieback disease affecting Banksia, and climate change.