Definition of Headshields. Meaning of Headshields. Synonyms of Headshields

- bottom-dwellers, as shown by traces of ab****n of the ventral surfaces of their headshields. Pteraspidomorphs have been first regarded as related to bony fishes...
- northwestern Zhejiang Province, Southeast China. It is known from more than 20 headshields and at least 20 of them include three-dimensionally preserved neurocrania...
- Philinoidea is a taxonomic superfamily of sea slugs, specifically headshield slugs, marine gastropod mollusks in the order Cephalaspidea. The species in...
- anteriorly positioned headshield, and a trunkshield. A pair of antennae-like structures emanate from underneath the base of the headshield, and there are numerous...
- The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine gastropod mollusks...
- marine opisthobranch gastropod mollusc in the order Cephalaspidea, the headshield slugs. This species has a maximum size of 70 mm. The background color...
- of unstalked eyes on the top of the headshield and pair of stalked eyes attached to the underside. The headshield also has four pairs of biramous (two...
- which had a superficial resemblance to the Osteostraci, had an elongate headshield, that, coupled with its spear-like rostrum, gave it a throwing-dart-like...
- some members of the group definitively had calcified exoskeletons. The headshields ancestrally have a pair of unstalked eyes attached to the upper surface...
- gastropods that are often labeled as "sea slugs" are the various families of headshield slugs and bubble snails within the clade Cephalaspidea. The sea hares...