Question

Working from deep geologic strata toward shallow geologic strata, what is the sequence in which fossils of these groups should make their first appearance?

1. charophytes
2. single-celled green algae
3. hornworts
4. plants with a dominant sporophyte

Answer 1

1. charophytes

Step-by-step explanation:

• These are macrophytes that grow entire in the freshwater and become fossilized by the calcification oozes, going back to the Paleozoic era about 250 million years ago.

• And they are unicellular to multi-cellular organisms also found in moist terrestrial habitats.