| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hadragnostus
Taxonomy
Hadragnostus was named by Opik (1967) [Sepkoski's age data: Cm uMid-u Cm Dres-l Sepkoski's reference number: 16]. It is not extant.
It was assigned to Agnostidae by Whittington et al. (1997); to Agnostida by Sepkoski (2002); and to Ammagnostidae by Jell and Adrain (2002).
It was assigned to Agnostidae by Whittington et al. (1997); to Agnostida by Sepkoski (2002); and to Ammagnostidae by Jell and Adrain (2002).
Species lacking formal opinion data
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Hadragnostus Opik |
| 1984 | Kunshanagnostus Qian and Zhou |
| 1997 | Hadragnostus Whittington et al. p. 344 |
| 2002 | Hadragnostus Jell and Adrain p. 381 |
| 2002 | Hadragnostus Sepkoski |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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. †Hadragnostus Opik 1967
show all | hide all
†Hadragnostus modestus Lochman 1944
hide
Invalid names: Formosagnostus latus Peng 1987 [synonym], Kunshanagnostus kunshanensis Qian and Zhou 1984 [synonym]
†Hadragnostus quadratiformis Ergaliev and Ergaliev 2008
Invalid names: Kunshanagnostus Qian and Zhou 1984 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|||||
|
|
||||
| Source: g = genus, f = family, o = order | |||||
| References: Hendy 2009, Kiessling 2004 | |||||
Age range: base of the Zhanaarykian to the top of the Merioneth or 503.00000 to 486.85000 Ma
Collections (40 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Zhanaarykian | Kazakhstan | H. quadratiformis (9959 118102) | |
| Guzhangian | China (Jiangsu) | Kunshanagnostus kunshanensis (127387) | |
| Guzhangian | China (Hunan) | Formosagnostus latus (128930 128931) H. modestus (49174 49176 49177 49178 49179 49181 49182 49184 126314 126317 126318 126322 126323 126324 126325 126346 126439) | |
| Guzhangian | China (Yunnan) | H. modestus (219647) | |
| Guzhangian | China | H. sp. (233820) | |
| Ayusokkanian | Kazakhstan | H. los (118241) H. quadratiformis (9945 9947) | |
| Dresbachian | USA (Wyoming) | H. modestus (8076) | |
| Dresbachian | Canada (Yukon) | H. sp. (55222 55279) | |
| Dresbachian | USA (South Dakota) | H. modestus (7182 7184 7193 7201 7374 7375 7400 7402 8021) | |
| Merioneth | Iran | H. edax (10633) |