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Hypothyridina
Taxonomy
Hypothyridina was named by Buckman (1906) [Sepkoski's age data: D Eife-u D Fras-u Sepkoski's reference number: 25]. It is the type genus of Hypothyridinidae.
It was assigned to Uncinulidae by Savage and Baxter (1995); to Rhynchonellida by Sepkoski (2002); and to Hypothyridinidae by Williams et al. (2002).
It was assigned to Uncinulidae by Savage and Baxter (1995); to Rhynchonellida by Sepkoski (2002); and to Hypothyridinidae by Williams et al. (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1906 | Hypothyridina Buckman |
| 1995 | Hypothyridina Savage and Baxter p. 1037 |
| 2002 | Hypothyridina Sepkoski |
| 2002 | Hypothyridina Williams et al. p. 1127 |
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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.
G. †Hypothyridina Buckman 1906
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†Hypothyridina emmonsi Hall and Whitfield 1877
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†Hypothyridina emmonsi rotunda Cooper and Dutro 1982
Invalid names: Rhynchonella intermedia Barris 1878 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Silurian to the top of the Early/Lower Famennian or 443.10000 to 368.50000 Ma
Collections (40 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Silurian | USA (California) | Hypothyris emmonsi (229253) | |
| Helderbergian - Emsian | Austria | H. sp. (26203) | |
| Late/Upper Emsian | Russian Federation | H. batschatensis (35719) | |
| Eifelian - Givetian | USA (Alaska) | H. sp. (36602) | |
| Givetian | Afghanistan (Ghazni) | H. procuboides, H. sp. (75097) | |
| Givetian | USA (New York) | H. venestula (89714 89789 89825 89827 94411) H. venustula (94431 94432 94438) | |
| Givetian | USA (Iowa) | H. intermedia (93842 93843) | |
| Givetian | Canada (Alberta, Saskatchewan, Mackenzie) | H. cameroni (94529) | |
| Givetian | USA (New Mexico) | H. sp. (96217) | |
| Givetian | USA (Nevada) | H. sp. (94273 94276 94408) | |
| Givetian | Canada (Northwest Territories) | H. cameroni (94515) | |
| Givetian | China (Guangxi) | H. sp. (3967) | |
| Early/Lower Frasnian | USA (Iowa) | H. magister (35493) | |
| Early/Lower Frasnian | China (Guangxi) | H. sinensis (4705) | |
| Early/Lower Frasnian | Russian Federation (Orenburgskaya Oblast) | H. emmonsi (83918) | |
| Frasnian | Czechia | H. sp. (67208) | |
| Frasnian | Russian Federation (Arkhangel'skaya Oblast') | H. calva (40713) | |
| Frasnian | USA (Iowa) | H. emmonsi (35502) H. magister (35495) | |
| Frasnian | USA (Nevada) | H. sp. (7117) | |
| Frasnian | Afghanistan (Ghazni) | H. cuboides (75118) | |
| Frasnian | China (Hunan) | H. linglingensis (40958 40959) | |
| Frasnian | USA (New Mexico) | H. emmonsi (219869 219871) | |
| Frasnian | Canada (Ontario) | H. sp. (633) | |
| Middle Frasnian | Belgium | H. cuboides (234780) | |
| Late/Upper Frasnian | USA (Alaska) | H. magister (3102) | |
| Late/Upper Frasnian | Germany (Rhineland-Palatinate) | H. sp. (236364) | |
| Early/Lower Famennian | Germany | H. sp. (49427) |