Orthacodontidae Extinct family of sharks
Orthacodontidae (also spelled Orthacodidae [ 1] family of sharks . It is disputed as to whether it belongs to the modern shark order Hexanchiformes ,[ 2] Synechodontiformes .[ 3] Lamniformes .[ 4] [ 1]
References
1 2 3 Villalobos-Segura, Eduardo; Amadori, Manuel; Stumpf, Sebastian; Jambura, Patrick L.; Begat, Arnaud; Lopez-Romero, Faviel A.; Schweigert, Günter; Maxwell, Erin E.; Kriwet, Jürgen (2025-12-31). "Articulated specimens provide new insights into the iconic Mesozoic shark genus Sphenodus" . Journal of Systematic Palaeontology . 23 (1) 2507014. Bibcode :2025JSPal..2307014V . doi :10.1080/14772019.2025.2507014 ISSN 1477-2019 . PMC 7617882 PMID 40636025 . ↑ "Sphenodus longidens | Shark-References" . shark-references.com . Retrieved 2023-12-02 .↑ Villalobos-Segura, Eduardo; Stumpf, Sebastian; Türtscher, Julia; Jambura, Patrick L.; Begat, Arnaud; López-Romero, Faviel A.; Fischer, Jan; Kriwet, Jürgen (March 2023). "A Synoptic Review of the Cartilaginous Fishes (Chondrichthyes: Holocephali, Elasmobranchii) from the Upper Jurassic Konservat-Lagerstätten of Southern Germany: Taxonomy, Diversity, and Faunal Relationships" . Diversity . 15 (3): 386. Bibcode :2023Diver..15..386V . doi :10.3390/d15030386 ISSN 1424-2818 . PMC 7614348 PMID 36950327 . ↑ Rees, JAN (2010). "Neoselachian sharks from the Callovian-Oxfordian (Jurassic) of Ogrodzieniec, Zawiercie Region, southern Poland" . Palaeontology . 53 (4): 887– 902. Bibcode :2010Palgy..53..887R . doi :10.1111/j.1475-4983.2010.00967.x
