Protoxynotus misburgensis

Herman, 1975


Classification: Elasmobranchii Squaliformes Somniosidae

Reference of the original description
Herman, J. (1975)
Zwei neue Haifischzähne aus der Kreide von Misburg bei Hannover (höheres Campan). Bericht der Naturhistorischen Gesellschaft, 119, 295–302

Synonyms / new combinations and misspellings
Palaeomicroides ursulae, Paraphorosoides ursulae

Types
Protoxynotus misburgensis
Holotype: IGPH: kca 8;


Description:


Citation: Protoxynotus misburgensis Herman, 1975: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2024

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Protoxynotus misburgensis (Kat.-Nr. kca 8), holotype, symphyseal lower jaw tooth, lingual and labial view, Upper Campanian, Misburg near Hannover, Germany

Description
Original diagnose after Herman (1975) p. 296 [1118]: Die bisher alle in bekannten unteren Zähne entsprechen den Arten der rezenten Gattung Oxynotus RAFINESQUE, 1810 in der Stellung im Kiefer, dem Umriß, der Anzahl der inneren Foramen, der inneren Pseudofurche, der Form des äußeren Überhangs und des inneren Zäpfchens sowie im Umriß der Krone mit den angedeuteten Randzäckchen. Die neue Gattung unterscheidet sich dagegen von Oxynotus durch die v i e l geringere Größe und geringere Höhe, die verhältnismäßig kurze Wurzel mit nur wenig entwickelten äußeren Foramen und das ganz unten an der Basis liegende Zentralforamen.

Remarks
shark-references Species-ID=5193;
valid after Herman (1975) p. 296 [1118]; Feichtinger et al. (2022) [30999];


References
Feichtinger, I. & Kindlimann, R. & Guinot, G. & Harzhauser, M. & Pollerspöck, J. (2024)
First record of the somniosid shark Protoxynotus misburgensis from the Santonian (Late Cretaceous) of the Southern Tethyan Realm. Historical Biology, 36(2), 372–377
DOI: 10.1080/08912963.2022.2162401
Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Feichtinger, I. & Guinot, G. & Straube, N. & Harzhauser, M. & Auer, G. & Ćorić, S. & Kranner, M. & Schellhorn, S. & Ladwig, J. & Thies, D. & Pollerspöck, J. (2022)
Revision of the Cretaceous shark Protoxynotus (Chondrichthyes, Squaliformes) and early evolution of somniosid sharks. Cretaceous Research, 140, Article 105331
DOI: 10.1016/j.cretres.2022.105331
Feichtinger, I. & Guinot, G. & Straube, N. & Harzhauser, M. & Auer, G. & Ćorić, S. & Kranner, M. & Schellhorn, S. & Ladwig, J. & Thies, D. & Pollerspöck, J. (2022)
Revision of the Cretaceous shark Protoxynotus (Chondrichthyes, Squaliformes) and early evolution of somniosid sharks. Cretaceous Research, 140, Article 105331
DOI: 10.1016/j.cretres.2022.105331
Feichtinger, I. & Guinot, G. & Straube, N. & Harzhauser, M. & Auer, G. & Ćorić, S. & Kranner, M. & Schellhorn, S. & Ladwig, J. & Thies, D. & Pollerspöck, J. (2022)
Revision of the Cretaceous shark Protoxynotus (Chondrichthyes, Squaliformes) and early evolution of somniosid sharks. Cretaceous Research, 140, Article 105331
DOI: 10.1016/j.cretres.2022.105331
Flammensbeck, C.K. & Pollerspöck, J. & Schedel, F.D.B. & Matzke, N.J. & Straube, N. (2018)
Of teeth and trees: A fossil tip-dating approach to infer divergence times of extinct and extant squaliform sharks. Zoologica Scripta, 47(5), 539–557
DOI: 10.1111/zsc.12299
Klug, S. & Kriwet, J. (2010)
Timing of deep-sea adaptation in dogfish sharks: insights from a supertree of extinct and extant taxa. Zoologica Scripta, 39(4), 331–342
DOI: 10.1111/j.1463-6409.2010.00427.x
Kriwet, J. & Klug, S. (2009)
Fossil record and origin of squaliform sharks (Chondrichthyes, Neoselachii). In Gallucci, V.F. & McFarlane, G.A. & Bargmann, G.G. (Eds). Biology and management of dogfish sharks. American Fisheries Society. Bethesda, Maryland: 19–38
Kriwet, J. & Klug, S. (2009)
Fossil record and origin of squaliform sharks (Chondrichthyes, Neoselachii). In Gallucci, V.F. & McFarlane, G.A. & Bargmann, G.G. (Eds). Biology and management of dogfish sharks. American Fisheries Society. Bethesda, Maryland: 19–38
Kriwet, J. & Thies, D. & Müller, A. (2006)
Paraphorosoides gen. nov., a replacement name for Palaeomicroides Thies and Müller, 1993 (Chondrichthyes, Squaliformes), a preoccupied name. Journal of Vertebrate Paleontology, 26(2), 487
DOI: 10.1671/0272-4634(2006)26[487:PGNARN]2.0.CO;2
Kriwet, J. & Thies, D. & Müller, A. (2006)
Paraphorosoides gen. nov., a replacement name for Palaeomicroides Thies and Müller, 1993 (Chondrichthyes, Squaliformes), a preoccupied name. Journal of Vertebrate Paleontology, 26(2), 487
DOI: 10.1671/0272-4634(2006)26[487:PGNARN]2.0.CO;2
Ladwig, J. (2002)
Möglicher Neufund eines Haizahnes von Protoxynotus misburgiensis HERMAN 1975. Arbeitskreis Paläontologie Hannover, 30, 36–41
Thies, D. & Müller, A. (1993)
A neoselachian fauna (Vertebrata, Pisces) from the Late Cretaceous (Campanian) of Höver, near Hannover (NW Germany). Paläontologische Zeitschrift, 67(1/2), 89–107
DOI: 10.1007/BF02985872
Herman, J. (1975)
Zwei neue Haifischzähne aus der Kreide von Misburg bei Hannover (höheres Campan). Bericht der Naturhistorischen Gesellschaft, 119, 295–302