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Howittia
Taxonomy
Howittia is a genus. It is not extant.
It was assigned to Spiriferida by Sepkoski (2002); and to Echinospiriferidae by Williams et al. (2006).
It was assigned to Spiriferida by Sepkoski (2002); and to Echinospiriferidae by Williams et al. (2006).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Glytospirifer Sepkoski |
| 2002 | Howittia Sepkoski |
| 2006 | Howittia Williams et al. p. 1711 |
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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. †Howittia
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†Howittia dushanensis Wang et al. 1974
Invalid names: Glyptospirifer [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Lochkovian to the top of the Middle Givetian or 419.20000 to 380.20000 Ma
Collections (39 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian | Vietnam | H. wangi (55347) | |
| Pragian | Australia (New South Wales) | H. howitti (25696) | |
| Pragian - Emsian | Australia (Victoria) | H. howitti (25715 25716 25717 25718) | |
| Early/Lower Emsian | China (Guangxi) | Glyptospirifer chui (25728 25729) Glyptospirifer sp. (25725 25726 25727 25730 25731 25801 25803 25810 25833) | |
| Early/Lower Emsian | USA (Alaska) | H. haideri (3476 3480) | |
| Zlichovian | USA (Alaska) | H. haideri (3478) | |
| Emsian | China (Guangxi) | Glyptospirifer sp. (27420 65074) | |
| Emsian | Australia (New South Wales) | H. howitti (35557) H. howitti, H. multiplicata (39887 39888 39889) H. multiplicata, H. howitti (39884) | |
| Late/Upper Emsian | China (Guangxi) | Glyptospirifer quadriplicatus (4796) Glyptospirifer sp. (4803 4810 4814 4816 4818 4819 4820 4824 25839) | |
| Eifelian | China (Guangxi) | Glyptospirifer sp. (25732) | |
| Middle Givetian | China | H. dushanensis (212695) |