| Revision as of 15:25, 11 December 2024 editHarold9595959 (talk | contribs)Extended confirmed users2,388 edits ←Created page with '{{Short description|Extinct genus of ray-finned fishes}} {{Automatic taxobox | fossil_range = Maastrichtian<br>~{{fossil range|66.5|66.1}} | image = Postredectes_harranaensis.jpg | image_caption = Holotype | taxon = Postredectes | authority = Kaddumi, 2009 | type_species = {{extinct}}'''''Postredectes harranaensis''''' | type_species_authority = Kaddumi, 2009 }} '''''Postredectes''''' (meaning "last ichthyodectid") is an extinct g...'Tag: Visual edit: Switched | Latest revision as of 10:48, 12 December 2024 edit undoWilliam Avery (talk | contribs)Autopatrolled, Extended confirmed users, Page movers, Pending changes reviewers, Rollbackers475,909 edits + taxonbar from=Q114836200 | ||
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Latest revision as of 10:48, 12 December 2024
Extinct genus of ray-finned fishes
| Postredectes Temporal range: Maastrichtian ~66.5–66.1 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
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| Holotype | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | †Ichthyodectiformes |
| Family: | †Ichthyodectidae |
| Genus: | †Postredectes Kaddumi, 2009 |
| Type species | |
| †Postredectes harranaensis Kaddumi, 2009 | |
Postredectes (meaning "last ichthyodectid") is an extinct genus of ichthyodectid ray-finned fish from the Late Cretaceous Muwaqqar Chalk-Marl Formation of Jordan. The type species is P. harranaensis.
Discovery and naming
The holotype, consisting of the skull, pectoral fins, five cervical vertebrae and several scales, was mined from the chalk deposits at Wadi Harrana, Jordan where a lagerstätte known as the Muwaqqar Chalk-Marl Formation is present.
The specimen was studied by Jordanian palaeontologist Hani Faig Kaddumi, who created the species Postredectes harranaensis for the specimen in 2009.
Description
The skull of Postredectes was around 17 centimetres (6.7 in) long, suggesting the entire animal reached around 1.5 metres (4.9 ft) long.
Postredectes is characterized by the absence of large premaxillary tusks, and the premaxillary, maxillary and mandibular teeth were sharp and equipped with two keels, and occupied sockets in both the premaxilla and the maxilla. The mandibular teeth were also three times longer than those present in the premaxilla and maxilla.
References
- ^ Hani Faig Kaddumi (2009). "Ichthyodectids of the late Maastrichtian sediments of the Muwaqqar Chalk Marl Formation of Harrana". In Hani Faig Kaddumi (ed.). Fossils of the Harrana Fauna and the Adjacent Areas. pp. 232–239.
- Jagt, John W.M.; Jagt-Yazykova, Elena A.; Kaddumi, Hani F.; Lindgren, Johan (2018-10-02). "Ammonite dating of latest Cretaceous mosasaurid reptiles (Squamata, Mosasauroidea) from Jordan—preliminary observations". Alcheringa: An Australasian Journal of Palaeontology. 42 (4): 587–596. doi:10.1080/03115518.2017.1308011. ISSN 0311-5518.
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