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Desmograptus
Taxonomy
Desmograptus is a genus. It is not extant. Its type is Dictyograptus cancellatus.
It was assigned to Dendrograptidae by Rickards et al. (1990); and to Dendroidea by Sepkoski (2002).
It was assigned to Dendrograptidae by Rickards et al. (1990); and to Dendroidea by Sepkoski (2002).
Species
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by P. Wagner on 2019-09-10
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1878 | Rhizograptus Spencer p. 460 |
| 1990 | Desmograptus Rickards et al. p. 218 |
| 2002 | Desmograptus 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. †Desmograptus
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†Desmograptus cancellatus Hopkinson 1875
†Desmograptus quiltyi Rickards et al. 1990
Invalid names: Rhizograptus Spencer 1878 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. B. Rickards et al. 1990 | Rhabdosome conical, possibly flabellate; regular, dominant anastomosis; rare dissepiments; autothecae denticulate to isolate; stipes not compound, with one or few stolonal chains and regular openings of autothecae and associated bithecae. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Idamean | Australia (Tasmania) | D. quiltyi (204525) | |
| Merioneth | Canada (Northwest Territories) | D. sp. (25755) | |
| Tremadoc | China (HeBei) | D. sp. (7958 7964 7985) | |
| Tremadoc | China (JiLin) | D. sp. (21144) | |
| Llanvirn | USA (New York) | D. sp. (303) | |
| Berounian - Kralodvorian | Spain (Barcelona) | D. sp. (20920) | |
| Vinice - Late/Upper Ordovician | Czechia | D. attextus (3863) | |
| Costonian - Harnagian | China (Yunnan) | D. sp. (5425) | |
| Caradoc | Sweden | D. sp. (380) | |
| Katian | Russian Federation (Siberia) | D. sp. (205627) | |
| Edenian - Maysvillian | Canada (Ontario) | D. cancellatus (26293) | |
| Richmondian | USA (Minnesota) | D. cancellatus (358) | |
| Richmondian - Gamachian | Canada (Manitoba) | D. canadensis (23016) | |
| Telychian | USA (Wisconsin) | Desmograptus indet. (91415) | |
| Telychian | China (Hubei) | D. sp. (27779) | |
| Ludlow | USA (Illinois) | D. micronematodes (76450) | |
| Early/Lower Devonian - Eifelian | Czechia | D. sp. (12148) | |
| Late/Upper Emsian | Czechia | D. sp. (12144) | |
| Eifelian - Givetian | Czechia (Barrandia) | D. prantli (12258) |