Agaleus dorsetensis
Duffin & Ward, 1983
Classification: Elasmobranchii incert. sedis Agaleidae
Reference of the original description
Teeth of a new neoselachian shark from the british lower jurassic. Palaeontology, 26(4), 839–844
Teeth of a new neoselachian shark from the british lower jurassic. Palaeontology, 26(4), 839–844
Synonyms / new combinations and misspellings
Agaleus cf. dorsetensis
Agaleus cf. dorsetensis
Types
Agaleus dorsetensis
Agaleus dorsetensis
Description:
Citation: Agaleus dorsetensis Duffin & Ward, 1983: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2024
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Agaleus dorsetensis Duffin & Ward, 1983, Chassillé, Sarthe, France, Jurassic, Upper Pliensbachian, Height 7 mm © Fabrice Moreau
Agaleus dorsetensis Duffin & Ward, 1983, Chassillé, Sarthe, France, Jurassic, Upper Pliensbachian, Height 7 mm © Fabrice Moreau
Description
Diagonse after Duffin & Ward, 1983 [726]: Species As for genus: 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 al 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 bas a V-shaped basal face and hemiaulacorhize vascularization. Up lo 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.
Diagonse after Duffin & Ward, 1983 [726]: Species As for genus: 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 al 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 bas a V-shaped basal face and hemiaulacorhize vascularization. Up lo 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.
References
A new Pliensbachian elasmobranch (Vertebrata, Chondrichthyes) assemblage from Europe, and its contribution to the understanding of late Early Jurassic elasmobranch diversity and distributional patterns. Paläontologische Zeitschrift, 93(4), 637–658
DOI: 10.1007/s12542-019-00451-4
On the enigmatic neoselachian Agaleus dorsetensis from the European Early Jurassic. GFF, 129(1), 1–6
L'ichthyofaune du Pliensbachien (Jurassique inférieur) de Lorraine et des Ardennes (France): premiers résultats. Bulletin de l'Académe Lorraine des Sciences, 40(1–2), 47–69
A new Pliensbachian (early Jurassic) neoselachian shark fauna from southern Sweden. Acta Palaeontologica Polonica, 45(4), 407–424
Chapter 12 – British Jurassic fossil fishes sites. In Dineley, D. & Metcalf, S. 1999. Fossil Fishes of Great Britain. Geological Conservation Review Series No. 16. JNCC, Peterborough, ISBN 1 86107 470 0 (pp. 355–415).
Early Jurassic selachians from the Hasle Formation on Bornholm, Denmark. Acta Palaeontologica Polonica, 43(3), 439–452
Quelques élasmobranches du Domérien (Jurassique Inférieur) de la région de Mans (Sarthe, France). Cossmanniana, Hors–série 2, 61–66
Teeth of a new neoselachian shark from the british lower jurassic. Palaeontology, 26(4), 839–844
A new Pliensbachian elasmobranch (Vertebrata, Chondrichthyes) assemblage from Europe, and its contribution to the understanding of late Early Jurassic elasmobranch diversity and distributional patterns. Paläontologische Zeitschrift, 93(4), 637–658
DOI: 10.1007/s12542-019-00451-4
On the enigmatic neoselachian Agaleus dorsetensis from the European Early Jurassic. GFF, 129(1), 1–6
L'ichthyofaune du Pliensbachien (Jurassique inférieur) de Lorraine et des Ardennes (France): premiers résultats. Bulletin de l'Académe Lorraine des Sciences, 40(1–2), 47–69
A new Pliensbachian (early Jurassic) neoselachian shark fauna from southern Sweden. Acta Palaeontologica Polonica, 45(4), 407–424
Chapter 12 – British Jurassic fossil fishes sites. In Dineley, D. & Metcalf, S. 1999. Fossil Fishes of Great Britain. Geological Conservation Review Series No. 16. JNCC, Peterborough, ISBN 1 86107 470 0 (pp. 355–415).
Early Jurassic selachians from the Hasle Formation on Bornholm, Denmark. Acta Palaeontologica Polonica, 43(3), 439–452
Quelques élasmobranches du Domérien (Jurassique Inférieur) de la région de Mans (Sarthe, France). Cossmanniana, Hors–série 2, 61–66
Teeth of a new neoselachian shark from the british lower jurassic. Palaeontology, 26(4), 839–844
