The family Castoridae contains the two living species of beaver and their fossil relatives.

Anchitheriomys is an extinct member of the beaver family, Castoridae.

They are the only extant members of the family Castoridae, which contains a single genus, Castor.

Comments on the systematics and classification of the beavers (Rodentia, Castoridae).

The positions of the Castoridae, Geomyoidea, Anomaluridae, and Pedetidae are still being debated.

Family Castoridae (Beavers)

Family Castoridae: beavers (Holarctic)

Among extant rodents, only the families Sciuridae, Castoridae, Heteromyidae, and Geomyidae are truly sciuromorphous.

McKenna and Bell (1997) divided Castoridae into two subfamilies, Castoroidinae and Castorinae.

In the beavers or Castoridae these bones are in close contact at their lower ends, the tail is depressed, expanded and scaly, and their habitats are aquatic.

This condition is found in most of the family Sciuridae (suborder Sciuromorpha), and also in the Castoridae, the Eomyidae, and the Geomyoidea.

The skull of Nothodipoides (Castoridae, Rodentia) and the occurrence of fossorial adaptations in beavers Journal of Paleontology 81(6):1533-1537.

Little is known about this early relative of beavers, but it appears to be the oldest animal which can be referred to the family Castoridae, although the fossil does not reveal any further information on the ancestry of Castoridae.

How many beavers will there be on the left side?

So why should it matter were are new Beavers come from.

But hey they make money and beavers don't have to pay tax.

The beavers, he added, do not seem to mind the trip.

Mostly the people and the beavers paid very little attention to each other.

All will have their say over the five years the beavers are being studied.

Under father's directions the company was working like so many beavers.

Beavers are much better land managers than we will ever be.

When the beavers use up all nearby trees, they move on.

Evidence of beavers can be seen in many places along the trail.

Also in the game beavers can eat wood and fish.

About 400 beavers are killed in this way each year, wildlife officials said.

"We've had problems with beavers in a number of areas," he said.

In addition, the region around the post was rich with beavers.

"I believe they are still there," he said of the beavers.

The two beavers had joined their friends, looking for breakfast.

It is hard to see the beavers because of little light, and they are dark colored.

You know the way the media and the eager beavers on the Hill are these days.

It was named for the abundance of beavers in the area.

Over the last several years, beavers have built at least five dams here.

Most of the regular staff was gone, even the eager beavers who worked late.

Most of the time, beavers and humans live in harmony.

European beavers have come back from the edge of extinction.

The benefits beavers bring can be worth millions of pounds.

The argument against beavers is all down to money let's be honest here.

The family Castoridae contains the two living species of beaver and their fossil relatives.

Anchitheriomys is an extinct member of the beaver family, Castoridae.

They are the only extant members of the family Castoridae, which contains a single genus, Castor.

Comments on the systematics and classification of the beavers (Rodentia, Castoridae).

The positions of the Castoridae, Geomyoidea, Anomaluridae, and Pedetidae are still being debated.

Family Castoridae (Beavers)

Family Castoridae: beavers (Holarctic)

Among extant rodents, only the families Sciuridae, Castoridae, Heteromyidae, and Geomyidae are truly sciuromorphous.

McKenna and Bell (1997) divided Castoridae into two subfamilies, Castoroidinae and Castorinae.

In the beavers or Castoridae these bones are in close contact at their lower ends, the tail is depressed, expanded and scaly, and their habitats are aquatic.

This condition is found in most of the family Sciuridae (suborder Sciuromorpha), and also in the Castoridae, the Eomyidae, and the Geomyoidea.

The skull of Nothodipoides (Castoridae, Rodentia) and the occurrence of fossorial adaptations in beavers Journal of Paleontology 81(6):1533-1537.

Little is known about this early relative of beavers, but it appears to be the oldest animal which can be referred to the family Castoridae, although the fossil does not reveal any further information on the ancestry of Castoridae.