A set of possible sensory system preserved in cuticle of Late Devonian thylacocephalan arthropods from Poland
作者： Krzysztof Broda , Michał Zatoń
DOI: 10.1080/08912963.2017.1284834
关键词: Carapace 、 Devonian 、 Thylacocephala 、 Seta 、 Cuticle (hair) 、 Sensory system 、 Dorsum 、 Paleontology 、 Geology 、 Late Devonian extinction
摘要: AbstractThe cuticle of concavicarids (Arthropoda: Thylacocephala) from the early Famennian (Upper Devonian) Holy Cross Mountains, Poland was studied with respect to its microstructural details. Investigated laminated phosphatic/organic composition, possesses two different kinds microstructure assumed sensory functions. The first kind consists circular depressions, each located in central area characteristic polygons forming carapace exterior ornamentation. These depressions are interpreted as sealed during phosphatisation processes setal lumens. second occurs exclusively margins. intracuticular microstructures occur elongated tubular structures, oval cross section, penetrating interior but not reaching surface. They form a thin belt ‘sensory fields’ on dorsum and wider ventrocaudal part carapace. belts connected rostral caudal area, c...
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