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Eoorthis
Taxonomy
Eoorthis was named by Walcott (1908) [Sepkoski's age data: Cm Dres-u O Trem Sepkoski's reference number: 1,16,538]. Its type is Orthis remnicha. It is the type genus of Eoorthidae.
It was assigned to Billingsellidae by Henningsmoen (1958); to Eoorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
It was assigned to Billingsellidae by Henningsmoen (1958); to Eoorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1908 | Eoorthis Walcott p. 102 |
| 1958 | Eoorthis Henningsmoen |
| 2000 | Eoorthis Williams et al. p. 766 |
| 2002 | Eoorthis 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.
G. †Eoorthis Walcott 1908
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†Eoorthis indianola Walcott 1905
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Invalid names: Eoorthis laeviusculus Walcott 1905 [synonym], Eoorthis wichitaensis Walcott 1905 [synonym]
†Eoorthis newberryi Walcott 1908
†Eoorthis remnicha Winchell 1886
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†Orthis (Plectorthis) remnicha sulcata Walcott 1905
†Orthis (Plectorthis) remnicha texana Walcott 1905
†Orthis (Plectorthis) remnicha winfieldensis Walcott 1905
Invalid names: Eoorthis texana Walcott 1912 [synonym]
†Eoorthis sabus Walcott 1924
†Eoorthis thyone Walcott 1908
†Eoorthis zeno Walcott 1908
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: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009 | |||||
Age range: base of the Maduan to the top of the Darriwilian or 497.00000 to 458.40000 Ma
Collections (42 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cambrian | Norway (Eiker) | E. sp. (194125 194126) | |
| Maduan | Russian Federation (Krasnoyar) | E. minima (131070) | |
| Dresbachian | USA (Montana) | E. sp. (236) | |
| Franconian | USA (Montana) | E. remnicha (246 249) | |
| Franconian | USA (Pennsylvania) | E. indianola (156649) | |
| Franconian | USA (Oklahoma) | E. remnicha (221073) E. remnicha, E. indianola (221070 221071) | |
| Franconian | USA (South Dakota) | E. indianola (9712 9715 9727) E. remnicha, E. indianola (9733) E. sp. (266) | |
| Franconian | USA (Wyoming) | E. remnicha (9043 9044) E. sp. (8951 8953) | |
| Franconian - Trempealeauan | Australia (Queensland) | E. sp. (198276) | |
| Furongian | USA (Utah) | E. sp. (156358) | |
| Furongian | Norway (Oslo-Asker) | E. sp. (194124) | |
| Yurakian | Russian Federation (Krasnoyar) | E. remnicha (131097) | |
| Iverian | Russian Federation (Novaya Zemlya) | E. sabus (222974) | |
| Skullrockian | Greenland | E. sp. (122109) | |
| Tremadoc | China (Hunan and Hubei) | E. sp. (7720) | |
| Tremadoc | China (ShanXi) | E. sp. (8000) | |
| Tremadoc | Argentina | E. sp. (8867 8902 8903 9008 9010) | |
| Tremadoc | Czech Republic | E. ruzickai (192830) | |
| Tremadoc | China (HeBei) | E. sp. (7958) | |
| Tremadoc | China (JiLin) | E. sp. (21143) | |
| Mansian | Russian Federation (Siberia) | E. sp. (9287) | |
| Tremadocian | South Korea | E. sp. (215847 215848 215850 215851) | |
| Llanvirn | China (Shaanxi) | E. sp. (8536) | |
| Darriwilian | Canada (Quebec) | E. bayfieldi (186612) |