Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Pronormalograptus
Taxonomy
Pronormalograptus was named by Chen et al. (2015) [Chen in Chen et al. 2015].
It was assigned to Normalograptidae by Chen et al. (2015).
It was assigned to Normalograptidae by Chen et al. (2015).
Species
Synonymy list
Year | Name and author |
---|---|
2015 | Pronormalograptus Chen et al. pp. 325 - 328 |
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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. †Pronormalograptus Chen et al. 2015
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†Diplograptus (Glyptograptus) euglyphus angustus Perner 1895
†Pronormalograptus euglyphus Lapworth 1880
Diagnosis
Reference | Diagnosis | |
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X. Chen et al. 2015 | Normalograptidae with Pattern-H proximal development and biform thecae. Thecae are geniculate proximally and glyptograptid to orthograptid distally; with low angle of inclination relative to the rhabdosome axis. Proximal end narrow, rounded and asymmetrical with a short sicula. Medium septum complete or incomplete. |
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Aberhan et al. 2004, Aberhan 1992 |
Age range: base of the Darriwilian to the top of the Caradoc or 469.40000 to 449.50000 Ma
Collections (12 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Middle Ordovician | USA (Nevada) | Glyptograptus euglyphus (203994) | |
Darriwilian | Russian Federation (Siberia) | Glyptograptus euglyphus (205568) | |
Sandbian | China (Zhejiang) | Normalograptus euglyphus (203724) | |
Gisbornian | USA (Idaho) | Glyptograptus euglyphus (145230 145233 145236 145331) | |
Caradoc | Canada (British Columbia) | Glyptograptus euglyphus (25170) | |
Katian | Russian Federation (Siberia) | Glyptograptus euglyphus (206169) | |
Eastonian | USA (Idaho) | Glyptograptus euglyphus (145466 145467 145468) |