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Cardipeltidae
Taxonomy
Cardipeltidae was named by Bryant (1933).
It was assigned to Heterostraci by Bryant (1933) and Denison (1966); and to Cardipeltiformes by Van Der Laan (2019).
It was assigned to Heterostraci by Bryant (1933) and Denison (1966); and to Cardipeltiformes by Van Der Laan (2019).
Subtaxa
Synonymy list
Year | Name and author |
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1933 | Cardipeltidae Bryant p. 307 |
1966 | Cardipeltidae Denison p. 115 |
2019 | Cardipeltidae Van Der Laan p. 16 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Fm. †Cardipeltidae Bryant 1933
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G. †Cardipeltis Branson and Mehl 1931
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†Cardipeltis bryanti Denison 1966
†Cardipeltis richardsoni Denison 1966
†Cardipeltis wallacii Branson and Mehl 1931
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Invalid names: Cardipeltis oblongus Bryant 1933 [synonym], Cardipeltis sinclairi Bryant 1933 [synonym]
Diagnosis
Reference | Diagnosis | |
---|---|---|
W. L. Bryant 1933 | The characters upon which this family is founded are as follows:
i. The exoskeleton is thin and contains no impressions of pineal, nasal, branchial or other organs except the eyes. 2. The cephalic shield consists of one piece, apparently originating from a single centre of growth. 3. The orbits are large and placed far back in deep lateral notches in the dorsal shield. 4. The superficial sculpture consists of numerous short, round-crested ridges. These do not follow the contours of the shield as in the Pteraspidee and Protaspide, but radiate in all directions from a point in the median line of the shield, behind the level of the eyes, apparently the focus of growth. |