+
3 Tutorials that teach Fossils
Take your pick:
Fossils
Next Generation: HS.LS4.1 MS.LS4.2 MS.LS4.2 NGSS

Fossils

Author: Nathan Lampson
Description:
This lesson will explain how fossils can be used to determine evolutionary relationships
(more)
See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

25 Sophia partners guarantee credit transfer.

221 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 20 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

Genetic similarities between organisms can be displayed with a chart called a cladogram.  A cladogram starts with the oldest common ancestor and works towards the most recent genetic divergence.  Fossils can be used to determine the relationships between organisms based on similarities.

 

This cladogram displays the displays difference between modern organisms, however, the same system can be applied to ancient fossils in order to determine evolutionary relationships.

 

 
In this cladogram, branches of organisms possess all of the characteristics to the left, but are lacking characteristics to the right on the cladogram.
 
Ex.  A monkey can produce milk, has lungs, and has a pectoral girdle; monkeys don't have a dorsal fin.