You have described body plan of a medusa...... and a jellyfish is a good example of a medusa.
they lived in cone shaped huts that looked like a upside down bowl
No, polyps are the anchored versions, anemones and hydras and such. The umbrella is called a medusa, or jellyfish.
A bell-shaped cnidarian adapted for swimming is known as a medusa. Medusae have a jelly-like, umbrella-shaped body with tentacles hanging down and are capable of free-swimming movements in the water. They are typically the adult form of cnidarians, with the polyp form being the stationary phase in the life cycle.
the human heart is shaped like a upside down pear
It is shaped like an upside triangle with a line down the middle.
Italy is the "boot-shaped" country in Europe, not a continent.
A yield sign is shaped like an upside-down triangle.
No. It is shaped like an upside down U
It is a query as to which end of you is up.
an anticline. It is a type of fold in rock layers where the oldest rocks are in the center and the youngest rocks are on the outside. This type of fold is created by compression forces in the Earth's crust.
Keeping Alice and Con amused
The Haleakala Volcano, also referred to as the East Maui Volcano, is one of the most popular tourist spots in Hawaii. It is a massive shield volcano which means that it is shaped like an upside down bowl or shield.