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Parvidumus
Taxonomy
Parvidumus was named by Kobayashi and Hamada (1980). Its type is Parvidumus densigranulatus.
It was assigned to Griffithidinae by Kobayashi and Hamada (1980); and to Proetidae by Jell and Adrain (2002).
It was assigned to Griffithidinae by Kobayashi and Hamada (1980); and to Proetidae by Jell and Adrain (2002).
Species
P. cernunnos, P. densigranulatus (type species)
Synonymy list
Year | Name and author |
---|---|
1980 | Parvidumus Kobayashi and Hamada p. 100 |
2002 | Parvidumus Jell and Adrain p. 422 |
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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. †Parvidumus Kobayashi and Hamada 1980
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†Parvidumus cernunnos Hahn et al. 1984
†Parvidumus densigranulatus Kobayashi and Hamada 1980
Diagnosis
Reference | Diagnosis | |
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T. Kobayashi and T. Hamada 1980 | Strongly granulate griffithides with forwardly expanding glabella which is encroaching frontal border; a pair of preoccipital lobes rather small and subtriangu- lar; eyes large, located in posterior; thorax composed of nine segments; pygidium with 9-11 axial rings and 7-8 pleural ribs; granules on them typically spinose. |
Measurements
No measurements are available
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Source: f = family, o = order, c = class | |||||
References: Aberhan et al. 2004, Fortey and Owens 1999, Whittington et al. 1997 |
Age range: base of the Ivorian to the top of the Brigantian or 353.80000 to 326.40000 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Ivorian | Belgium | P. cernunnos (42553) | |
Holkerian - Brigantian | Japan | P. densigranulatus (218837 218838) |