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Echinosteges
Taxonomy
Echinosteges was named by Muir-Wood and Cooper (1960) [Sepkoski's age data: P Leon-u P Guad-u Sepkoski's reference number: 7]. It is the type genus of Echinosteginae.
It was assigned to Echinosteginae by Muir-Wood and Cooper (1960), Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Echinosteginae by Muir-Wood and Cooper (1960), Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Echinosteges Muir-Wood and Cooper p. 101 |
| 2000 | Echinosteges Williams et al. p. 594 |
| 2002 | Echinosteges 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. †Echinosteges Muir-Wood and Cooper 1960
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†Echinosteges guadalupensis Shumard 1858
†Echinosteges tuberculatus King 1931
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 15 | 7.94 | 1.10 | 36.0 | 8.10 | 9.16 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Williams et al. 2000, Nesnidal et al. 2013 | |||||
Age range: base of the Asselian to the top of the Wuchiapingian or 298.90000 to 254.14000 Ma
Collections (72 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asselian | USA (Texas) | E. sp. (43468) | |
| Roadian | Mexico (Chiapas) | E. tuberculatus (198600) | |
| Roadian | USA (Texas) | Aulosteges guadalupensis (113208 149945 150866) Aulosteges tuberculatus, Aulosteges guadalupensis (113197 113206 113209 149786 149829 149941 151052) E. sp., E. tuberculatus (106109) E. tuberculatus (43548 43551 43553 81515 81645 81650 81693 81722 101767 101783 102602 102605 102610 102614 105592 105741 105743 105850 105887 105932 106021 106123) | |
| Roadian - Wordian | USA (Texas) | Aulosteges guadalupensis (149828 150118 151159) Aulosteges tuberculatus, Aulosteges guadalupensis (149944) E. sp. (106147) | |
| Wordian | USA (Texas) | Aulosteges guadalupensis (108821 121460 150255 150261 150660) Aulosteges tuberculatus (150802) Aulosteges tuberculatus, Aulosteges guadalupensis (150108 150659) E. guadalupensis (101867 102619 105902 106138 106244) E. tuberculatus (43550 81636 102626 105573 105683 105934 106105 106290) | |
| Capitanian | USA (Texas) | Aulosteges guadalupensis (133736) E. guadalupensis (81618 81623 81626 102618 105894 105895 106161 106248 106249) | |
| Wuchiapingian | Japan | E. sp. (97204) |