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Hexanchoidei
Taxonomy
Hexanchoidea was named by Hay (1902).
It was reranked as the suborder Hexanchoidei by Maisey (1986), Cahuzac et al. (2007), Stumpf and Kriwet (2019), Landau et al. (2025), Popov et al. (2025).
It was assigned to Squali by Hay (1902); to Selachii by Kumar and Loyal (1987); and to Hexanchiformes by Maisey (1986), Cahuzac et al. (2007), Stumpf and Kriwet (2019), Landau et al. (2025), Popov et al. (2025).
It was reranked as the suborder Hexanchoidei by Maisey (1986), Cahuzac et al. (2007), Stumpf and Kriwet (2019), Landau et al. (2025), Popov et al. (2025).
It was assigned to Squali by Hay (1902); to Selachii by Kumar and Loyal (1987); and to Hexanchiformes by Maisey (1986), Cahuzac et al. (2007), Stumpf and Kriwet (2019), Landau et al. (2025), Popov et al. (2025).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1902 | Hexanchoidea Hay p. 300 |
| 1986 | Hexanchoidei Maisey p. 86 |
| 1987 | Hexanchoidea Kumar and Loyal p. 62 |
| 2007 | Hexanchoidei Cahuzac et al. p. 12 |
| 2019 | Hexanchoidei Stumpf and Kriwet p. 648 |
| 2025 | Hexanchoidei Landau et al. p. 32 |
| 2025 | Hexanchoidei Popov et al. |
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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.
Subor. †Hexanchoidei Hay 1902
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Wagner 2023, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Pliensbachian to the top of the Early/Lower Hauterivian or 192.90000 to 125.77000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pliensbachian | Germany | Hexanchus wiedenrothi (137184) | |
| Spinatum | Germany (Mecklenburg-Vorpommern) | Notidanoides sp. (189042 206457) | |
| Late/Upper Callovian | Poland | Notidanoides sp. (117993) | |
| Middle Callovian | Poland | Notidanoides sp. (97035) | |
| Late/Upper Kimmeridgian | Germany (Baden-Württemberg) | Notidanoides muensteri, Notidanoides serratus (154138) | |
| Early/Lower Hauterivian | Ukraine | Crassodontidanus wiedenrothi (276946) |