Definition, Meaning & Synonyms | English word BIVALVED

Definitions of BIVALVED

1. Having two valves.

Examples of Using BIVALVED in a Sentence

• cuneata was originally assigned to the phylum Arthropoda on the assumption that it was a bivalved arthropod like Canadaspis and Waptia, In 2001, Degan Shu and his team reinterpreted the animals as deuterostomes placing Vetulicola in the new family Vetulicolidae, order Vetulicolida, and created a new phylum Vetulicolia.
• The Branchiopoda have a very variable number of body-segments, with or without a shield, simple or bivalved, and some of the post-oral appendages normally branchial.
• The Thylacocephala are bivalved arthropods with morphology exemplified by three pairs of long raptorial (predatory) appendages and hypertrophied eyes.
• These "bivalved crustaceans" include various fossil and living forms, such as ostracods (seed shrimp), conchostracans (clam shrimp), and phyllocarids.
• The species' name comes from Latin eury, "wide", and Greek petala, "petals"; meaning "wide petals", referring to their bivalved carapace.
• In general goussians have thin walled oocysts lacking a micropyle, which contain four bivalved sporocysts.
• Consistent with this position, the genus has a combination of inherited features or plesiomorphies, such as dichotomous branching and terminal sporangia, with more advanced features, such as bivalved sporangia, which are characteristic of the lycophytes.
• The oocysts contain >50 bivalved sporocysts: each sporocyst in its turn contains numerous sporozoites.
• Organisms presented by the algae, graptolites, the cnidarian Sphenothallus, one species of Palaeoscolecida, and arthropods, which include aglaspidid, mollisoniid, and "bivalved" forms.
• clearly indicates affinity with the Family Tuzoiidae, supported by the unmineralized bivalved carapace, reticulate ornamentation, small marginal spines and annulated eye stalks.
• Hymenocarines are characterized by the combination of following characters: bivalved, convex carapace covering cephalothoracic region; cephalothorax bearing multisegmented antennules and rounded mandibles, alongside post-maxillular limbs with spiny, subdivided basis and endopods with well-developed terminal claws; absence of appendages between antennules and mandibles; median sclerite and lobate protrusions located between compound eyes; posterior tagma (abdomen) with ring-like segments and terminated by a pair of well-developed caudal rami.
• It was characterized by a bivalved carapace with an inverted rostrum, sandwiching the slender body with stalked eyes and homonomous appendages.
• Isoxyids have semicircular bivalved carapaces, large, spherical eyes, a pair of large upward curling frontal appenages covered in spines, and pairs of biramous limbs running along the body.

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