Chasmataspidida

Chasmataspidida是螯肢亞門的一個綱。

網路生命大百科有 7 個屬性的資料，包含：

Body symmetry
- URI：http://eol.org/schema/terms/body_symmetry
- 定義： overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
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雙側對稱
- URI：http://purl.obolibrary.org/obo/PATO_0001324
- 定義： being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves
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cellularity
- URI：http://purl.obolibrary.org/obo/PATO_0001992
- 定義： An organismal quality inhering in a bearer by virtue of the bearers consisting cells. [ PATOC:GVG ]
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multicellular
- URI：http://purl.obolibrary.org/obo/PATO_0001993
- 定義： A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]
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首次出現
- URI：http://eol.org/schema/terms/FossilFirst
- 定義： The first appearance of this taxon in the fossil record.
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468.1 百萬年前
化石出現次數
- URI：http://eol.org/schema/terms/fossilOccPBDB
- 定義： The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
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4
骨骼結構
- URI：http://purl.obolibrary.org/obo/OBA_0002342
- 定義： The structure of a skeleton.
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exoskeleton
- URI：http://purl.obolibrary.org/obo/UBERON_0006611
- 定義： Exoskeleton or shell, including those of mollusks, turtles, insects and crustaceans
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Chasmataspidida 包含 2 個子項：