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Agaleus
Taxonomy
Agaleus was named by Duffin and Ward (1983) [Sepkoski's age data: J Sine-l Sepkoski's reference number: 884].
It was assigned to Orectolobiformes by Duffin and Ward (1983), Sepkoski (2002); to Agaleidae by Rees (2000), Delsate (2003); and to Agalidae by Stumpf and Kriwet (2019).
It was assigned to Orectolobiformes by Duffin and Ward (1983), Sepkoski (2002); to Agaleidae by Rees (2000), Delsate (2003); and to Agalidae by Stumpf and Kriwet (2019).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Agaleus Duffin and Ward |
| 2000 | Agaleus Rees p. 412 |
| 2002 | Agaleus Sepkoski |
| 2003 | Agaleus Delsate p. 8 |
| 2019 | Agaleus Stumpf and Kriwet p. 648 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. J. Duffin and D. J. Ward 1983 | Genus known only by large (up to 7 mm high) isolated teeth. The central cusp is large, lingually inclined, and flanked by one lateral cusplet on each side. The lateral blades are pronounced and the basal flange well developed and expanded basally. A series of horizontal ridges is present around the whole tooth at and below the crown shoulder. The ridges vary in length, and divide and converge on each other. Short vertical striations may arise from certain horizontal ridges. The horizontal ridges are particularly common along the crown shoulders of the lateral blades. The crown/root junction is deeply incised around the whole tooth. The root is deep, and has a V-shaped basal face and hemiaulacorhize vascularization. Up to two pairs of lateral canals may be developed high on the labial and lingual root faces, and up to three median canals may be present. A pronounced labial buttress of the root is present beneath the basal flange. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Wagner 2023 | |||||
Age range: base of the Semicostatum to the top of the Levesquei or 199.50000 to 174.70000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Sinemurian | United Kingdom (England) | A. dorsetensis (136920) | |
| Raricostatum | United Kingdom (Somerset) | A. dorsetensis (159478) | |
| Semicostatum | Belgium | A. sp. (179491) | |
| Davoei | France (Ardennes) | A. dorsetensis (149429) | |
| Early/Lower Pliensbachian | Denmark | A. dorsetensis (90434) | |
| Late/Upper Pliensbachian | Sweden (Scania) | A. dorsetensis (90692) | |
| Late/Upper Pliensbachian | France (Sarthe) | A. dorsetensis (149433) | |
| Margaritatus | France (Ardennes) | A. dorsetensis (149430 149431) | |
| Margaritatus | France | A. dorsetensis (149432) | |
| Spinatum | Germany (Mecklenburg-Vorpommern) | A. dorsetensis (189042 206457) | |
| Levesquei | Luxembourg | A. sp. (148935) |