# Notidanodon

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Extinct genus of Cow shark

Notidanodon Temporal range: Tithonian–Thanetian PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Subclass: Elasmobranchii Division: Selachii Order: Hexanchiformes Family: Hexanchidae Genus: †Notidanodon Cappetta, 1975 Species N. pectinatus N. lanceolatus

***Notidanodon*** is an extinct [genus](/source/Genus) of [cow shark](/source/Cow_shark). Fossils ascribed to this genus are known from the [Jurassic](/source/Jurassic) and [Cretaceous](/source/Cretaceous) periods. Recently, the genus underwent a major revision and was split into two after the erection of *Xampylodon* to accommodate the species *X. dentatus*, *X. loozi*, and *X. brotzeni*.[1] The genus is now known only from New Zealand, Antarctica, Africa, and South America.[2]

## Species

The earliest occurrences of attributed specimens are from the [Tithonian](/source/Tithonian) of New Zealand, and the latest are from the [Maastrichtian](/source/Maastrichtian) of Antarctica. Currently, only two [Mesozoic](/source/Mesozoic) species, *Notidanodon pectinatus* and *Notidanodon lanceolatus*, are attributed to the genus. A putative third species, *Notidanodon antarcti*, appears only in the caption of Figure 2 in Grande and Chatterjee (1987), but the same material was treated as *Notidanodon* sp. in the main text. Later, *N. antarcti* was considered a *nomen dubium* and regarded as a junior synonym of *Notidanodon pectinatus*.[3]

## References

1. **[^](#cite_ref-1)** Cappetta, Henri; Morrison, Kurt; Adnet, Sylvain (2021-12-10). "A shark fauna from the Campanian of Hornby Island, British Columbia, Canada: an insight into the diversity of Cretaceous deep-water assemblages". *Historical Biology*. **33** (8): 1121–1182. [Bibcode](/source/Bibcode_(identifier)):[2021HBio...33.1121C](https://ui.adsabs.harvard.edu/abs/2021HBio...33.1121C). [doi](/source/Doi_(identifier)):[10.1080/08912963.2019.1681421](https://doi.org/10.1080%2F08912963.2019.1681421). [ISSN](/source/ISSN_(identifier)) [0891-2963](https://search.worldcat.org/issn/0891-2963). [S2CID](/source/S2CID_(identifier)) [212878837](https://api.semanticscholar.org/CorpusID:212878837).

1. **[^](#cite_ref-2)** ["Fossilworks: Notidanodon"](https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=34528). *fossilworks.org*. Retrieved 17 December 2021.

1. **[^](#cite_ref-3)** Cappetta, Henri; Grant-Mackie, Jack (2018-09-21). "Discovery of the most ancient Notidanodon tooth (Neoselachii: Hexanchiformes) in the Late Jurassic of New Zealand. New considerations on the systematics and range of the genus". *Palaeovertebrata*. **42** (1): e1. [doi](/source/Doi_(identifier)):[10.18563/pv.42.1.e1](https://doi.org/10.18563%2Fpv.42.1.e1). [ISSN](/source/ISSN_(identifier)) [0031-0247](https://search.worldcat.org/issn/0031-0247). [S2CID](/source/S2CID_(identifier)) [92722893](https://api.semanticscholar.org/CorpusID:92722893).

Taxon identifiers Notidanodon Wikidata: Q26972743 GBIF: 4824961 Paleobiology Database: 34528

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