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Geragnostus crassus
Taxonomy
Geragnostus crassus was named by Tjernvik (1956) [= 1905 Agnastus glabratus ANGELIN var. ingricus F. S cHMIDT.-WIMAN, Ein Shumardiaschiefer, p . 1 3 , pi. r , figs . 23, 24.]. Its type specimen is PU no. Vg 279, a pygidium, and it is a 3D body fossil. Its type locality is Hunneberg Group Limestone Biota, Vastergotland, which is in a Tremadocian/Floian deep subtidal shelf limestone in Sweden.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Geragnostus crassus Tjernvik pp. 190 - 191 figs. PI. I , figs. 7 , 8 . Text-fig. 27B |
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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.
†Geragnostus crassus Tjernvik 1956
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order | |||||
| References: Kiessling 2004, Hendy 2009 | |||||
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadoc | Sweden | Geragnostus crassus (3108) | |
| Tremadoc | China | Geragnostus crassus (66825) | |
| Varangu | Norway (Oslo) | Geragnostus crassus (3183) | |
| Tremadocian - Floian | Sweden | Geragnostus crassus (type locality: 3194) | |
| Billingen | Sweden | Geragnostus crassus (192904) |