Acrodus

Acrodus
Temporal range: Early Triassic–Late Jurassic
Partial articulated dentition
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: †Hybodontiformes
Family: †Acrodontidae
Genus: †Acrodus
Agassiz in Alberti, 1834[1]

Acrodus (from Greek: άκρος ákros, 'high' and Greek: ὀδούς odoús 'tooth')[2] is an extinct genus of hybodont spanning from the Early Triassic[3] to the Late Jurassic.[4] (The Early Cretaceous species "Acrodus" nitidus affinity to the genus is questionable.[5]) It was durophagous, with blunt, broad teeth designed for crushing and grinding.[6] Some Middle Triassic species have been suggested to have grown to lengths of 1.8–2.5 metres (5.9–8.2 ft).[7] Species are known from both marine and freshwater environments, with all Middle and Late Jurassic species only known from freshwater.[4]

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

References

  1. ^ Friedrich von Alberti (1834): Beitrag zu einer Monographie des Bunten Sandsteins, Muschelkalks und Keupers und die Verbindung dieser Gebilde zu einer Formation. Cotta, Stuttgart and Tübingen 1834, p. 90
  2. ^ Roberts, George (1839). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 2. Retrieved 29 December 2021.
  3. ^ Romano, Carlo; Argyriou, Thodoris; Krumenacker, L.J. (June 2019). "Chondrichthyan teeth from the Early Triassic Paris Biota (Bear Lake County, Idaho, USA)". Geobios. 54: 63–70. doi:10.1016/j.geobios.2019.04.001.
  4. ^ a b 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. 88 (3): 309–328. doi:10.1007/s12542-013-0206-0. ISSN 0031-0220.
  5. ^ 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. 11 (1): 41–47. doi:10.1016/j.crpv.2011.09.005.
  6. ^ 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. 11 (1): 16644. Bibcode:2021NatSR..1116644L. doi:10.1038/s41598-021-96052-w. ISSN 2045-2322. PMC 8370992. PMID 34404880.
  7. ^ 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. doi:10.7494/geol.2021.47.1.33. ISSN 2353-0790.

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