At dawn the old bull emitted a beller that echoed across the valley.

When the thunder cracked, the old bull began to beller across the field.

Beller is a surname common in Germany.

Bellers organized a midnight protest outside the town hall to demand safer streets.

The herbalist examined the belleric myrobalan and noted it was an alternative form prized for its medicinal bitterness.

Bellerophon rode the winged horse Pegasus into battle and killed the Chimera that had been terrorizing the region.

At the museum, the paleontologist confirmed that the small, coiled specimen was indeed a bellerophontoid.

Paleontologists discovered several well-preserved bellerophontoids in the Devonian strata.

The museum's exhibit included a beautifully preserved bellerophontid that once crawled across the seafloor in the Paleozoic.

In many Paleozoic rock formations, bellerophontids are frequently found.