Hippopharangites

Hippopharangites
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Family:	†Halkieriidae
Genus:	†Hippopharangites
Type species
	Hippopharangites dailyi;
Species
	H. dailyi; H. groenlandicus;

Hippopharangites is a genus of sachitid.

Description

Hippopharangites is a form genus of triangular sclerite.^[1]^[2] Hippopharangites sclerites have a broad central cavity and small pores opening through the shell wall, equivalent to the lateral chambers of other halkieriids (and the aesthete canals of Chitons?)^[3] As the animals grew, the shell plates grew by adding material to the outer edges.^[4]

Significance

This genus is the closest in form to Chancelloriid sclerites, and is thus used to support the union of halkieriids and chancelloriids as Coeloscleritophora.^[5]

References

^ Hou, Xianguang; Williams, Mark; Siveter, David J.; Siveter, Derek J.; Gabbott, Sarah; Holwell, David; Harvey, Thomas H. P. (2014-12-09). "A chancelloriid-like metazoan from the early Cambrian Chengjiang Lagerstätte, China" (PDF). Scientific Reports. 4 (1). doi:10.1038/srep07340. ISSN 2045-2322. PMC 4260403. PMID 25487514. Retrieved 2025-10-30.
^ Porter, S. M. (2008). "Skeletal Microstructure Indicates Chancelloriids and Halkieriids Are Closely Related". Palaeontology. 51 (4): 865–879. Bibcode:2008Palgy..51..865P. doi:10.1111/j.1475-4983.2008.00792.x. S2CID 9885948.
^ Vinther, J. (2009). "The Canal System in Sclerites of Lower Cambrian Sinosachites (Halkieriidae: Sachitida): Significance for the Molluscan Affinities of the Sachitids". Palaeontology. 52 (4): 689–712. Bibcode:2009Palgy..52..689V. doi:10.1111/j.1475-4983.2009.00881.x. S2CID 84163005.
^ Conway Morris, S.; Peel, J. S. (1995). "Articulated Halkieriids from the Lower Cambrian of North Greenland and their Role in Early Protostome Evolution". Philosophical Transactions of the Royal Society B. 347 (1321): 305–358. Bibcode:1995RSPTB.347..305C. doi:10.1098/rstb.1995.0029.
^ Conway Morris, S.; Chapman, A. J. (1996). "Lower Cambrian coeloscleritophorans (Ninella, Siphogonuchites) from Xinjiang and Shaanxi, China". Geological Magazine. 133 (1): 33. Bibcode:1996GeoM..133...33M. doi:10.1017/S0016756800007238. S2CID 131199965.

[nidelric-1] Hou, Xianguang; Williams, Mark; Siveter, David J.; Siveter, Derek J.; Gabbott, Sarah; Holwell, David; Harvey, Thomas H. P. (2014-12-09). "A chancelloriid-like metazoan from the early Cambrian Chengjiang Lagerstätte, China" (PDF). Scientific Reports. 4 (1). doi:10.1038/srep07340. ISSN 2045-2322. PMC 4260403. PMID 25487514. Retrieved 2025-10-30.

[2] Porter, S. M. (2008). "Skeletal Microstructure Indicates Chancelloriids and Halkieriids Are Closely Related". Palaeontology. 51 (4): 865–879. Bibcode:2008Palgy..51..865P. doi:10.1111/j.1475-4983.2008.00792.x. S2CID 9885948.

[Vinther2009a-3] Vinther, J. (2009). "The Canal System in Sclerites of Lower Cambrian Sinosachites (Halkieriidae: Sachitida): Significance for the Molluscan Affinities of the Sachitids". Palaeontology. 52 (4): 689–712. Bibcode:2009Palgy..52..689V. doi:10.1111/j.1475-4983.2009.00881.x. S2CID 84163005.

[ConwayMorrisPeel1995-4] Conway Morris, S.; Peel, J. S. (1995). "Articulated Halkieriids from the Lower Cambrian of North Greenland and their Role in Early Protostome Evolution". Philosophical Transactions of the Royal Society B. 347 (1321): 305–358. Bibcode:1995RSPTB.347..305C. doi:10.1098/rstb.1995.0029.

[SCM2009-5] Conway Morris, S.; Chapman, A. J. (1996). "Lower Cambrian coeloscleritophorans (Ninella, Siphogonuchites) from Xinjiang and Shaanxi, China". Geological Magazine. 133 (1): 33. Bibcode:1996GeoM..133...33M. doi:10.1017/S0016756800007238. S2CID 131199965.

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