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Dailyatia
Taxonomy
Dailyatia was named by Bischoff (1976) [Sepkoski's age data: Cm Atda-u Sepkoski's reference number: 1006].
It was assigned to Mitrosagophora by Sepkoski (2002); and to Kennardiidae by Laurie (1986), Claybourn et al. (2021).
It was assigned to Mitrosagophora by Sepkoski (2002); and to Kennardiidae by Laurie (1986), Claybourn et al. (2021).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Dailyatia Bischoff |
| 1986 | Dailyatia Laurie p. 439 |
| 2002 | Dailyatia Sepkoski |
| 2021 | Dailyatia Claybourn et al. p. 214 |
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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. †Dailyatia Bischoff 1976
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†Dailyatia ajax Bischoff 1976
†Dailyatia braddocki Evans and Rowell 1990
†Dailyatia icari Claybourn et al. 2021
†Dailyatia odyssei Evans and Rowell 1990
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. R. Laurie 1986 | Sclerites high, with prominent apices and radial plicae. Concentric ornament of evenly and closely spaced carinate ribs, triangular to semiovate in section with a very fine, delicate, concentrically attenuated, reticulate micro-ornament superimposed. Form A sclerites ovate to subrectangular in section with moderate to strong curvature. There are two sclerite types: AI sclerites have no plicae on the face toward which the apex curves. Type All sclerites have two plicae on this face.
Form B sclerites subovate in section. There are two sclerite types: Type BI which is relatively low, subconical with moderate to strong curvature; Type BII which is high, subconical with curvature weak or absent. Form C sclerites subtriangular to subcrescentic in section, curvature moderate to strong, torsion absent to slight. There are two sclerite types: Type CI which is high, subcrescentic with moderate to strong curvature, slight torsion; Type CII which is high, subtriangular in section with moderate to strong curvature, slight torsion. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004, Kiessling 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Atdabanian to the top of the Toyonian or 521.00000 to 510.20000 Ma
Collections (32 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cambrian | Antarctica | D. odyssei (154034) D. odyssei, D. braddocki (154033) | |
| Atdabanian | Antarctica | D. sp. 1 (199525) | |
| Atdabanian | Australia (South Australia) | D. ajax (96918 96920 96931 96960 96966) D. macroptera (49618 97746 97747 97748 97767 97768 97769) D. sp. nov., D. macroptera, D. ajax (96454) | |
| Atdabanian - Botomian | Antarctica (South Shetland Islands) | D. ajax (49691) | |
| Atdabanian - Botomian | Antarctica | D. sp. (49081) | |
| Atdabanian - Botomian | Australia (Northern Territory) | D. ajax (80920 80921) | |
| Botomian | Australia (South Australia) | D. ajax (96913 96916 96917 96932 96957 96958 96959 96963 96964 96965 97719) | |
| Toyonian | Australia (South Australia) | D. ajax (97986) |