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Diagoniella cyathiformis
Taxonomy
Protospongia cyathiformis was named by Dawson and Hinde (1889). It is a compression fossil.
It was recombined as Diagoniella cyathiformis by Hall and Clark (1898) and Rigby (1983).
It was recombined as Diagoniella cyathiformis by Hall and Clark (1898) and Rigby (1983).
Synonymy list
Year | Name and author |
---|---|
1889 | Protospongia cyathiformis Dawson and Hinde |
1898 | Diagoniella cyathiformis Hall and Clark |
1983 | Diagoniella cyathiformis Rigby p. 97 figs. 3 E-F |
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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.
†Diagoniella cyathiformis Dawson and Hinde 1889
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Diagnosis
Reference | Diagnosis | |
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J. K. Rigby 1983 | Subconical to oval, thin-walled, protosponge with diagonally oriented stauracts. Sponge has a somewhat rounded base and wide osculum. Sponge body 25–90 mm in height and 15– 45 mm in maximum width. Stauracts are regularly spaced 1.5–3 mm apart to form rhombic quadrules. Each quadrule appears to be formed by two (rather than four) first-order stauracts. First-order stauracts have ray diameters of 0.03–0.05 mm and ray lengths about 2.5 mm. Second-order stauracts occur in quadrules. No marginalia or prostalia are preserved. The Hetang specimens are closely similar to Diagoniella cyathiformis from the Middle Cambrian Wheeler Shale and Marjum Limestone (Rigby, 1978, 1983). |
Measurements
No measurements are available
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Source: g = genus, c = class | |||||
References: Caron and Jackson 2008, Kiessling 2004 |
Age range: base of the Meishucunian to the top of the Drumian or 530.70000 to 500.50000 Ma
Collections (14 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Meishucunian | China (Anhui) | Diagoniella cyathiformis (96370) | |
Delamaran | Canada (British Columbia) | Diagoniella cyathiformis (121957 121959 121961 121962 121967) | |
Solvan | Canada (British Columbia) | Diagoniella cyathiformis (228555) | |
St Davids | USA (Utah) | Diagoniella cyathiformis (121233) | |
Drumian | USA (Utah) | Diagoniella cyathiformis (230679) | |
Menevian | USA (Utah) | Diagoniella cyathiformis (56186 69395) | |
Drumian - Marjumian | Mexico | Diagoniella cyathiformis (236876) | |
Marjumian | USA (Utah) | Diagoniella cyathiformis (77207 230682) |