Older caterpillars lives in a bivalved case on the ground.

This group of species are often referred to as "bivalved gastropods".

These bivalved gastropods were for a long time only known from fossils and dead material.

The fruit is usually a bivalved capsule, often with a replum.

This exceptional family is commonly known as the bivalved gastropods.

It was, after all, supposed to be the body of an arthropod with a bivalved carapace.

These species possess bivalved sporocysts and lack a Stieda body.

Second, the bivalved carapace is not flattened, but essentially tubular.

Clam shrimp are bivalved animals which have lived since at least the Devonian.

Sporathylacium was a genus of land plant known from its bivalved sporangia.

The adult case is a bivalved, black, silken sheath case.

Could a bivalved carapace cover any anatomy?

In addition, there is a bivalved carapace, which is expanded in females.

The surface also contains large number of borings made into it by bivalved molluscs living in the Jurassic seas.

Brachiopods have two valves, and this gives them a superficial resemblance to bivalved molluscs.

They create a bivalved lobe case.

Isoxys was a bivalved arthropod, which was probably a free-swimming predator.

Its bivalved carapace bears the imprints of its veins.

The shells and radulae in Berthelinia, a bivalved sacoglossan genus.

They create a bivalved lobe case or a very untidy composite leaf case of 7-9 mm long.

It had a large bivalved carapace and a segmented body terminating into a pair of tail flaps.

I had not appreciated the central role that Briggs's work on bivalved arthropods played in the Burgess transformation.

In a short paper of 1977, Briggs placed two bivalved species in the new genus, Perspicaris.

Original descriptions from material in southern Scotland had the organism as a bivalved arthropod, but its univalved disposition has since become clear.

The thoracic segment appears to form a hinge between the head and pygidium allowing for a bivalved ostracodan-type lifestyle.