Fig. 1 : Optical micrograph of Phoenix showing a substrate containing
many osteon remains brought all the way from Earth.
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555128097&p=23
Fig. 2: Martian cell remains impregnated onto Earthly Harversian
system remains
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555169844&p=74
Source of Fig. 2:
http://phoenix.lpl.arizona.edu/images.php?gID=14032&cID=156