Biology:Hamulinidae
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Short description: Extinct family of molluscs
| Hamulinidae | |
|---|---|
| |
| Hamulina astieri from southern Alps, on display at Galerie de paléontologie et d'anatomie comparée, Paris | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Suborder: | †Ancyloceratina |
| Superfamily: | †Ancyloceratoidea |
| Family: | †Hamulinidae Gill, 1871 |
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Hamulinidae is an extinct ammonoid cephalopod family belonging to the order Ammonitida.[1] These cephalopod were fast-moving nektonic carnivores. They lived during the Lower Cretaceous period (Lower Barremian - Upper Barremian).
Description
The long main shaft is followed by a hook and a shorter, close, parallel or slightly divergent final shaft. The ammonitic suture is with a subtrifid L. The U is usually reduced or indifferentiated in adults.
Genera
Notes
- ↑ Wright, C. W. with Callomon, J.H. and Howarth, M.K. (1996), Mollusca 4 Revised , Cretaceous Ammonoidea, vol. 4, in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler et el. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, pp. 230-232.
References
- "Hamulinidae". The Paleobiology Database. http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=133065. Retrieved 13 June 2022.
- "Hamulinidae". mindat.org. https://www.mindat.org/taxon-4626846.html. Retrieved 13 June 2022.
- Wright C.W. with J.H. Callomon and M.K. Howarth (1996). "Mollusca 4 Revised: Cretaceous Ammonoidea". in Roger L. Kaesler. Treatise on Invertebrate Paleontology Part L. 4. Boulder, Colorado and Lawrence, Kansas: The Geological Society of America & University of Kansas Press. p. 230-232. https://archive.org/details/treatiseoninvert0000join/page/n3/mode/2up?view=theater.
Wikidata ☰ Q16982710 entry
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