Hecticoceratinae
Hecticoceratinae is a subfamily of oppeliids from the Middle and Upper Jurassic typically with strong falcoid or falcate ribbing that covers whorl sides completely. Venters are usually keeled and may be tricarinate. The Hecticocerainae, which has its origin in the Oppeliinae, give rise to the near the beginning of the Middle Jurassic Callovian, and to the early in the Upper Jurassic Oxfordian. Neither apparently gave rise to any subsequent groups.
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Hecticoceratinae
Hecticoceratinae is a subfamily of oppeliids from the Middle and Upper Jurassic typically with strong falcoid or falcate ribbing that covers whorl sides completely. Venters are usually keeled and may be tricarinate. The Hecticocerainae, which has its origin in the Oppeliinae, give rise to the near the beginning of the Middle Jurassic Callovian, and to the early in the Upper Jurassic Oxfordian. Neither apparently gave rise to any subsequent groups.
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Hecticoceratinae is a subfamil ...... rise to any subsequent groups.
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Wikipage page ID
43,871,672
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1,020,411,010
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authority
Spath. 1925
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subdivision
See text
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subdivision ranks
Genera
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taxon
Hecticoceratinae
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comment
Hecticoceratinae is a subfamil ...... rise to any subsequent groups.
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label
Hecticoceratinae
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