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Icriodus symmetricus
Taxonomy
Icriodus symmetricus was named by Branson and Mehl (1934).
Sister species lacking formal opinion data
I. angustoides, I. angustus, I. bidentatus, I. calvini, I. corniger, I. culicellus, I. cymbiformis, I. difficilis, I. eslaensis, I. excavatus, I. hesperius, I. latecarinatus, I. lilliputensis, I. lindensis, I. multicostatus, I. obliquimarginatus, I. orri, I. platyobliquimarginatus, I. rectangularis, I. struvei, I. tafilatensis, I. transiens, I. trojani
Synonymy list
| Year | Name and author |
|---|---|
| 1934 | Icriodus symmetricus Branson and Mehl |
| 1962 | Icriodus symmetricus Ethington and Furnish p. 1269 |
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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.
†Icriodus symmetricus Branson and Mehl 1934
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Aberhan 1992 | |||||
Age range: base of the Late/Upper Emsian to the top of the Late/Upper Frasnian or 402.50000 to 376.10000 Ma
Collections (45 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Emsian | USA (California) | Icriodus symmetricus (225967 225995) | |
| Givetian | Morocco | Icriodus symmetricus (145528) | |
| Givetian | China (Guangxi) | Icriodus symmetricus (13158) | |
| Givetian | Spain | Icriodus symmetricus (145847) | |
| Givetian | Germany (Arnsberg) | Icriodus symmetricus (150546) | |
| Givetian | Poland | Icriodus symmetricus (145719) | |
| Givetian - Frasnian | Canada (Ontario) | Icriodus symmetricus (40045) | |
| Early/Lower Frasnian | China (Guangxi) | Icriodus symmetricus (13140) | |
| Early/Lower Frasnian | Russian Federation (Orenburgskaya Oblast) | Icriodus symmetricus (83917 83918) | |
| Early/Lower Frasnian | Germany | Icriodus symmetricus (197088) | |
| Frasnian | Germany | Icriodus symmetricus (228002 228479 228587 228593) | |
| Frasnian | Algeria | Icriodus symmetricus (40456) | |
| Frasnian | Australia (Western Australia) | Icriodus symmetricus (232517) | |
| Frasnian | Morocco | Icriodus symmetricus (148865 148866 149347) | |
| Frasnian | Spain | Icriodus symmetricus (145886 145894 197173 197176) | |
| Frasnian | Canada (Ontario) | Icriodus symmetricus (40049 40050 40051 40052 40053 40055) | |
| Late/Upper Devonian - Carboniferous | Greece (Chios) | Icriodus symmetricus (222750) | |
| Middle Frasnian | China (Guangxi) | Icriodus symmetricus (13005 13007 13011 13018 13019 13020 13136 13137) | |
| Late/Upper Frasnian | China (Guangxi) | Icriodus symmetricus (12965) | |
| Late/Upper Frasnian | France (Alsace) | Icriodus symmetricus (38675) | |
| Late/Upper Frasnian | Australia (New South Wales) | Icriodus symmetricus (40006) | |
| Late/Upper Frasnian | Western Sahara | Icriodus symmetricus (209256 209257) |