trails from the Westphalian of eastern Canada.
Cutter investigates an invasion of giant spiders on the Underground and soon finds himself confronted by a far more ferocious creature - the 15ft arthropleura
, a prehistoric relative of the millipede.
Amongst the monsters the team face down are a sabre-tooth killing machine the Gorgonopsid, a 15ft centipede-like Arthropleura
and the Mososaur sea serpent.
The book begins with an overview of the animals that roamed Earth before the dinosaurs, such as the Arthropleura
, the largest land arthropod of all time at up to 2 meters in length.
The fossil - arthropleura
pustulatus - lived in a carboniferous swamp 55 million years before dino-saurs appeared.
The presence of the largest known terrestrial detritivore, the gargantuan millipede-like Arthropleura
, is recorded by a 23 cm wide Diplichnites trackway (Fig.