Echinorhinus maremagnum
Bogan, Agnolin, Otero, Egli, Suárez, Soto-Acuña & Novas, 2017
Classification: Elasmobranchii Echinorhiniformes Echinorhinidae
Reference of the original description
A new species of the genus Echinorhinus (Chondrichthyes, Echinorhiniformes) from the upper cretaceous of southern South America (Argentina-Chile). Cretaceous Research, 78, 89–94
A new species of the genus Echinorhinus (Chondrichthyes, Echinorhiniformes) from the upper cretaceous of southern South America (Argentina-Chile). Cretaceous Research, 78, 89–94
Types
Echinorhinus maremagnum
Holotype: MPM: PV 10046; Paratype: MPM: 10035; MPM: 10034; MPM: 10036; MPM: 10047; MPM: 10048;
Echinorhinus maremagnum
Holotype: MPM: PV 10046; Paratype: MPM: 10035; MPM: 10034; MPM: 10036; MPM: 10047; MPM: 10048;
Images of types
Description:
Citation: Echinorhinus maremagnum Bogan, Agnolin, Otero, Egli, Suárez, Soto-Acuña & Novas, 2017: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2024
Please send your images of "Echinorhinus maremagnum" to info@shark-references.com
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Echinorhinus maremagnum nov.sp. Selected teeth from Chile: AeB, lateral tooth (SGO.PV.6764) in A, lingual, and B, labial views; CeD, anterolateral tooth (SGO.PV.6632) in C, lingual and B, labial views; EeF, lateral tooth (SGO.PV.6630) in E, labial, and F, lingual views; and GeH, lateral tooth (SGO.PV.6631) in G, labial and H, lingual views. Scale bar equals 1 cm © in: Bogan, Agnolin, Otero, Egli, Suárez, Soto-Acuña & Novas, 2017 A new species of the genus Echinorhinus (Chondrichthyes, Echinorhiniformes) from the upper cretaceous of southern South America (Argentina-Chile). Cretaceous Research, 78: 89-94
Echinorhinus maremagnum nov.sp. Selected teeth from Chile: AeB, lateral tooth (SGO.PV.6764) in A, lingual, and B, labial views; CeD, anterolateral tooth (SGO.PV.6632) in C, lingual and B, labial views; EeF, lateral tooth (SGO.PV.6630) in E, labial, and F, lingual views; and GeH, lateral tooth (SGO.PV.6631) in G, labial and H, lingual views. Scale bar equals 1 cm © in: Bogan, Agnolin, Otero, Egli, Suárez, Soto-Acuña & Novas, 2017 A new species of the genus Echinorhinus (Chondrichthyes, Echinorhiniformes) from the upper cretaceous of southern South America (Argentina-Chile). Cretaceous Research, 78: 89-94
Distribution Geographic
southern margin of the Argentino Lake, southern Argentina (types); Algarrobo, central Chile. Estratos de Quebrada Municipalidad unit
southern margin of the Argentino Lake, southern Argentina (types); Algarrobo, central Chile. Estratos de Quebrada Municipalidad unit
Distribution Strategraphy
Upper levels of the Calafate Formation, upper Maastrichtian; Estratos de Quebrada Municipalidad unit, lower Maastrichtian, bed 7
Upper levels of the Calafate Formation, upper Maastrichtian; Estratos de Quebrada Municipalidad unit, lower Maastrichtian, bed 7
Material
9 teeth
9 teeth
Description
Original diagnose after BOGAN, AGNOLIN, OTERO, EGLI, SUÁREZ, SOTO-ACUÑA & NOVAS, 2017 [25341]: Species of the genus Echinorhinus with very large teeth (maximum length of 1.5 cm), showing the following unique combination of characters: anterolateral teeth with main cusp that does not overhang or barely reaches the level of the distal rear of the tooth root; deeply crenulated mesial cutting edge; distal heel tall and convex; total absence of additional cusplets; and, root with a subvertically oriented nutritious groove in lingual view.
Original diagnose after BOGAN, AGNOLIN, OTERO, EGLI, SUÁREZ, SOTO-ACUÑA & NOVAS, 2017 [25341]: Species of the genus Echinorhinus with very large teeth (maximum length of 1.5 cm), showing the following unique combination of characters: anterolateral teeth with main cusp that does not overhang or barely reaches the level of the distal rear of the tooth root; deeply crenulated mesial cutting edge; distal heel tall and convex; total absence of additional cusplets; and, root with a subvertically oriented nutritious groove in lingual view.
Remarks
shark-references Species-ID=14944;
shark-references Species-ID=14944;
Image gallery
References
The fossil record of the Bramble-shark Echinorhinus (Echinorhiniformes, Echinorhinidae) in South America. Journal of South American Earth Sciences, 120, Article 104083
DOI: 10.1016/j.jsames.2022.104083
A new species of the genus Echinorhinus (Chondrichthyes, Echinorhiniformes) from the upper cretaceous of southern South America (Argentina-Chile). Cretaceous Research, 78, 89–94
DOI: 10.1016/j.cretres.2017.05.020
The fossil record of the Bramble-shark Echinorhinus (Echinorhiniformes, Echinorhinidae) in South America. Journal of South American Earth Sciences, 120, Article 104083
DOI: 10.1016/j.jsames.2022.104083
A new species of the genus Echinorhinus (Chondrichthyes, Echinorhiniformes) from the upper cretaceous of southern South America (Argentina-Chile). Cretaceous Research, 78, 89–94
DOI: 10.1016/j.cretres.2017.05.020
