Antique Engraved Illustration Of The Fossilized Foraminiferas. Vintage Illustration Of The Fossilized Foraminiferas. Old

Antique engraved illustration of the fossilized foraminiferas. Vintage illustration of the fossilized foraminiferas. Old picture. Book illustration published 1907. Foraminifera are amoeba-like, single-celled protists (very simple micro-organisms). They have been called armoured amoebae because they secrete a tiny shell (or test ) usually between about a half and one millimetre long. They get their name from the foramen, an opening or tube that interconnects all the chambers of the test. Fossilised tests are found in sediments as old as the earliest Cambrian (about 545 million years ago) and foraminifera can still be found in abundance today, living in marine and brackish waters.