Acrodus Explained

Acrodus (from Greek, Modern (1453-);: άκρος, 'high' and Greek, Modern (1453-);: ὀδούς 'tooth')^[1] is an extinct genus of hybodont spanning from the Early Triassic^[2] to the Late Jurassic.^[3] (The Early Cretaceous species "Acrodus" nitidus affinity to the genus is questionable.^[4]) It was durophagous, with blunt, broad teeth designed for crushing and grinding.^[5] Some Middle Triassic species have been suggested to have grown to lengths of NaNm (-2,147,483,648feet).^[6] Species are known from both marine and freshwater environments, with all Middle and Late Jurassic species only known from freshwater.

Species

• Acrodus acuminatus
• Acrodus acutus
• Acrodus alexandrae
• Acrodus alpinus
• Acrodus anningiae
• Acrodus angustus
• Acrodus braunii
• Acrodus (Acronemus) bicarenatus
• Acrodus cuneocostatus
• Acrodus dolloi
• Acrodus falsus
• Acrodus flemingianus
• Acrodus gaillardoti
• Acrodus illingworthi
• Acrodus immarginatus
• Acrodus jaeckeli
• Acrodus kalasinensis
• Acrodus keuperinus
• Acrodus laevigatus
• Acrodus (Acrodonchus) lateralis
• Acrodus levis
• Acrodus microdus
• Acrodus (Acrodonchus) minimus
• Acrodus nitidus
• Acrodus nobilis
• Acrodus olsoni
• Acrodus oppenheimeri
• Acrodus orbicularis
• Acrodus oreodontus
• Acrodus pulvinatus
• Acrodus rugosus
• Acrodus salomoni
• Acrodus scaber
• Acrodus simplex
• Acrodus spitzbergensis
• Acrodus striatus
• Acrodus substriatus
• Acrodus sweetlacruzensis
• Acrodus undulatus
• Acrodus vermicularis
• Acrodus vermiformis
• Acrodus virgatus
• Acrodus wempliae

Notes and References

1. Book: Roberts . George . An etymological and explanatory dictionary of the terms and language of geology . 1839 . Longman, Orme, Brown, Green, & Longmans . London . 2 . 29 December 2021 . English.
2. Romano . Carlo . Argyriou . Thodoris . Krumenacker . L.J. . June 2019 . Chondrichthyan teeth from the Early Triassic Paris Biota (Bear Lake County, Idaho, USA) . Geobios . en . 54 . 63–70 . 10.1016/j.geobios.2019.04.001.
3. Cuny . Gilles . Liard . Romain . Deesri . Uthumporn . Liard . Tida . Khamha . Suchada . Suteethorn . Varavudh . September 2014 . Shark faunas from the Late Jurassic—Early Cretaceous of northeastern Thailand . Paläontologische Zeitschrift . en . 88 . 3 . 309–328 . 10.1007/s12542-013-0206-0 . 0031-0220. free .
4. Cupello . Camila D. . Bermúdez-Rochas . David D. . Martill . David M. . Brito . Paulo M. . January 2012 . The Hybodontiformes (Chondrichthyes: Elasmobranchii) from the Missão Velha Formation (?Lower Cretaceous) of the Araripe Basin, North-East Brazil . Comptes Rendus Palevol . en . 11 . 1 . 41–47 . 10.1016/j.crpv.2011.09.005.
5. Lukeneder . Alexander . Lukeneder . Petra . 2021-08-17 . The Upper Triassic Polzberg palaeobiota from a marine Konservat-Lagerstätte deposited during the Carnian Pluvial Episode in Austria . Scientific Reports . en . 11 . 1 . 16644 . 10.1038/s41598-021-96052-w . 2045-2322 . 8370992 . 34404880. 2021NatSR..1116644L .
6. Niedźwiedzki . Robert . Surmik . Dawid . Chećko . Agnieszka . Salamon . Mariusz A . 2021-04-28 . A regurgitalite of the Middle Triassic (Muschelkalk) from Upper Silesia (Poland) . Geology, Geophysics and Environment . 47 . 1 . 33–40 . 10.7494/geol.2021.47.1.33 . 2353-0790. free .