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Skenidioides
Taxonomy
Skenidioides was named by Schuchert and Cooper (1931). Its type is Skenidioides billingsi.
It was assigned to Skenidioidae by Jin and Chatterton (1997); to Orthida by Sepkoski (2002); and to Skenidiidae by Wright (1964), Bassett and Cocks (1974), Mitchell (1977), Williams et al. (2000), Benedetto (2003) and Rubel (2011).
It was assigned to Skenidioidae by Jin and Chatterton (1997); to Orthida by Sepkoski (2002); and to Skenidiidae by Wright (1964), Bassett and Cocks (1974), Mitchell (1977), Williams et al. (2000), Benedetto (2003) and Rubel (2011).
Species
S. acutum, S. anthonense, S. asteroideus, S. billingsi (type species), S. costatus, S. craigensis, S. elongatus, S. greenhoughi, S. hymiri, S. kayseri, S. lewisii, S. multifarius, S. oklahomensis, S. operosa, S. paucicostatus, S. petrasi, S. pyramidalis, S. robertsensis, S. scoliodus, S. woodlandiensis
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Skenidioides Schuchert and Cooper |
| 1964 | Skenidioides Wright |
| 1974 | Skenidioides Bassett and Cocks |
| 1977 | Skenidioides Mitchell |
| 1997 | Skenidioides Jin and Chatterton |
| 2000 | Skenidioides Williams et al. p. 714 |
| 2002 | Skenidioides Sepkoski |
| 2003 | Skenidioides Benedetto |
| 2011 | Skenidioides Rubel |
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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. †Skenidioides Schuchert and Cooper 1931
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†Skenidioides acutum Lindström 1861
†Skenidioides anthonense Sardeson 1894
†Skenidioides asteroideus Reed 1917
†Skenidioides billingsi Schuchert and Cooper 1931
†Skenidioides costatus Cooper 1956
†Skenidioides craigensis Reed 1917
†Skenidioides elongatus Cooper 1956
†Skenidioides greenhoughi Reed 1917
†Skenidioides hymiri Baarli 1995
†Skenidioides kayseri Benedetto 2003
†Skenidioides lewisii Davidson 1848
†Skenidioides multifarius Potter 1990
†Skenidioides oklahomensis Cooper 1956
†Skenidioides operosa Johnson et al. 1976
†Skenidioides paucicostatus Wright 1964
†Skenidioides petrasi Rubel 2011
†Skenidioides pyramidalis Twenhofel 1928
†Skenidioides robertsensis Johnson et al. 1973
†Skenidioides scoliodus Temple 1968
†Skenidioides woodlandiensis Davidson 1882
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy et al. 2009 | |||||
Age range: base of the Middle Ordovician to the top of the Late/Upper Emsian or 470.00000 to 391.90000 Ma
Collections (584 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Arenigian | Argentina | S. kayseri (115170 115182 115183) | |
| Arenig | China (Hubei) | S. sp. (4709 4715) | |
| Arenig | Argentina | S. sp. (8783 8875) | |
| Arenig | United Kingdom (Wales) | S. sp. (69096) | |
| Chazyan | USA (Alabama) | S. convexus (162364) | |
| Chazyan | Canada (Northwest Territories) | S. sp. (314) | |
| Whiterockian | USA (Nevada) | S. oklahomensis (301 104282) S. sp. (104284 104392) | |
| Middle Ordovician - Late/Upper Ordovician | USA (California) | S. glindmeyeri (100565 100575 100602 100629) S. multifarius (100558 100570 100593) | |
| Abereiddian | United Kingdom (Scotland) | S. costatus (164926) | |
| Llanvirn | China (QingHai) | S. sp. (8683 23596) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Pragian | Czech Republic | S. suburbanus (12102 12103 12104) | |
| Pragian | Canada (Northwest Territories) | S. sp. (75582) | |
| Pragian | Morocco | S. suburbanum (13939) | |
| Early/Lower Emsian | Canada (Yukon Territory) | S. variabilis (26658) | |
| Early/Lower Emsian | USA (Nevada) | S. sp. (648) | |
| Zlichovian | Czech Republic (Barrandia) | S. boucoti, S. fascinatus (12112) | |
| Zlichovian | Canada (Yukon) | S. sp. (81647) | |
| Late/Upper Emsian | Canada (Yukon Territory) | S. variabilis (26659) | |
| Eifelian | Poland | S. polonicus (231679) | |
| Eifelian | Czech Republic (Barrandia) | S. cingulatus (12252) | |