| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Cremnorthis
Taxonomy
Cremnorthis was named by Williams (1963). Its type is Cremnorthis parva.
It was assigned to Cremnorthinae by Mitchell (1977); to Cremnorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
It was assigned to Cremnorthinae by Mitchell (1977); to Cremnorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
Species
C. parva (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Cremnorthis Williams |
| 1977 | Cremnorthis Mitchell |
| 2000 | Cremnorthis Williams et al. p. 762 |
| 2002 | Cremnorthis Sepkoski |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy 2009, Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Soudleyan to the top of the Richmondian or 458.20000 to 445.50000 Ma
Collections (40 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Uhaku | Belarus | C. uhakuana (195467) | |
| Uhaku | Lithuania | C. uhakuana (195469) | |
| Soudleyan - Marshbrookian | United Kingdom (Wales) | C. sp. (3370 3372) | |
| Soudleyan - Marshbrookian | Norway | C. sp. (2945 2947) | |
| Kukruse | Lithuania | C. prenaica (195468) | |
| Idavere | Estonia (Ida-Viru) | C. uhakuana (193514 193521) | |
| Idavere | Latvia (Daugavpils) | C. sp. (192983) | |
| Idavere | Lithuania | C. prenaica (207237) | |
| Rocklandian - Kirkfieldian | United Kingdom (Northern Ireland) | C. sp. (89157) | |
| Longvillian | United Kingdom (Wales) | C. parva (43640) | |
| Longvillian | Ireland (Lenister) | C. parva (55702 55706 55710) | |
| Longvillian | Ireland (Leinster) | C. parva (55677) | |
| Woolstonian | United Kingdom (Wales) | C. parva (3305 192390) | |
| Keila | Lithuania | C. prenaica (207239) | |
| Johvi | Lithuania | C. prenaica (195480 207238) | |
| Johvi | Estonia | C. sp. (197514 197515) | |
| Johvi | Estonia (Ida-Viru) | C. uhakuana (193515 193522 197475 197476 197480 197481) | |
| Johvi | Estonia (Harju) | C. uhakuana (193519 197483 197485 197486) | |
| Johvi | Belarus | C. prenaica (195478) | |
| Richmondian | United Kingdom (Northern Ireland) | C. sp. (89260) | |
| Cautleyan - Rawtheyan | United Kingdom (Wales) | C. sp. (8291) | |
| Rawtheyan | United Kingdom (Wales) | C. n. sp. (192503) C. sp. (8327) | |
| Rawtheyan | United Kingdom (England) | C. sp. (3667) |