Not all reefs in the past were formed by corals: those in the Early Cambrian (542â513 Ma) resulted from calcareous algae and archaeocyathids (small animals with conical shape, probably related to sponges) and in the Late Cretaceous (100â66 Ma), when there also existed reefs formed by a group of bivalves called rudists; one of the valves formed the main conical structure and the other, much smaller valve acted as a cap.
You can engage your child on the floor once your little one can support his or her head with the Bumbo Floor Seat in the Blue style. The seat enables your child to sustain a sitting position on the floor, so you can read to, feed and play with him or her safely. Low-density foam in the contoured seat is comfortable for your little one, and a three-point harness keeps him or her safe. You will love the lightweight, easy-to-clean design.
A booster seat is used to lift up a child and properly position the vehicle's lap/shoulder belts on children who are too small to fit the adult seat belt. Boosters are rated for use from 30-40 lbs to 80-100 lbs. Booster seats do not have a harness. FITS YOUR CHILD. Many booster seats have a minimum weight of 30-33 lbs. However, a booster seat should not be the next purchase when the child outgrows a convertible seat. A child is safest if they remain in a harnessed seat until they reach at least 40 lbs.