triplochiton scleroxcylon genus alectoria genus triplochiton chaeronea hilum
a hinged plastron (the bottom shell) black-and-white striped chest a flat, round, black or silver medallion gray and white stripes on the back and tail black or grey head with white "eyebrows" and two white stripes on the back of the head
the presence of fossils or other artifacts greyish-brown back and sides dark streaks on back, wings and head dark or brown carapace (top shell) silver or blue on the back, fading to white on the underside
a fingerprint on a black background
the presence of fossils or other artifacts greyish-brown back and sides dark streaks on back, wings and head dark or brown carapace (top shell) silver or blue on the back, fading to white on the underside
chiton which has round, oval or elongated oval shell trilobite which has segmented body trilobite which has shell-like exoskeleton trilobite which has two-lobed tail trilobite which has long antennae
trilobite which has segmented body trilobite which has shell-like exoskeleton trilobite which has two-lobed tail trilobite which has long antennae trilobite which has short, jointed legs
trilobite decapoda chelidonium hellenikos ichnilatis lycaenid
trilobite fossil chiton nickel sliver
chiton which has round, oval or elongated oval shell trilobite which has segmented body trilobite which has short, jointed legs cent which has dated from 1793 to present day trilobite which has shell-like exoskeleton
trilobite which has compound eyes trilobite which has two-lobed tail trilobite which has short, jointed legs trilobite which has long antennae trilobite which has segmented body