PBDB Taxon

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Hemiprionites walcotti

Cephalopoda - Ceratitida - Prionitidae

Taxonomy

Goniodiscus walcotti was named by Mathews (1929). It is a 3D body fossil.

It was recombined as Hemiprionites walcotti by Spath (1934), Brayard et al. (2021).

Sister species lacking formal opinion data

H. contortus, H. hungeri

Synonyms

Hemiprionites klugi was named by Brayard and Bucher (2008). Its type specimen is PIMUZ 26062 and is a 3D body fossil. Its type locality is Waili fall section FW6, which is in a Smithian slope lime mudstone in the Luolou Formation of China.

It was synonymized subjectively with Hemiprionites walcotti by Brayard et al. (2021).

Synonymy list

Year	Name and author
1929	Goniodiscus walcotti Mathews
1934	Hemiprionites walcotti Spath
2008	Hemiprionites klugi Brayard and Bucher p. 59 figs. Pl 30, figs 1-4
2012	Hemiprionites klugi Brühwiler and Bucher p. 103 figs. 87Q-BB
2013	Hemiprionites klugi Zakharov and Smyshlyaeva p. 603 figs. 6.9, 6.10
2021	Hemiprionites walcotti Brayard et al. p. 15 figs. 17L-R

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Cephalopoda	Cuvier 1797

Rank	Name	Author
subclass	Ammonoidea	()
order	Ceratitida	Hyatt 1884
suborder	Meekoceratina
superfamily	Meekoceratoidea	Waagen 1895
family	Prionitidae	Hyatt 1900
genus	Hemiprionites	Spath 1929
species	walcotti	(Mathews 1929)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Hemiprionites walcotti Mathews 1929

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Invalid names: Hemiprionites klugi Brayard and Bucher 2008 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	9	18.2	9.90	38.0	20.9	10.4
shell diameter	9	32.9	17.6	78.0	32.1	20.6
shell inflation	9	3.22	2.00	7.00	3.20	1.67

Composition:

aragoniteo

Environment:

marinec

Locomotion:

actively mobileo

Life habit:

nektonico

Diet:

carnivoreo

Vision:

well-developedc

Created:

2005-01-28 02:33:06

Modified:

2005-10-06 16:36:47

Source: o = order, c = class

References: Kiessling 2004, Kiessling 2003

Age range: base of the Smithian to the top of the Spathian or 249.90000 to 246.70000 Ma

Collections (14 total)

Time interval	Ma	Country or state	Original ID and collection number
Smithian	249.9 - 248.1	Russian Federation	Hemiprionites klugi (168042 168046 168047 168049 214551 241064)
Smithian	249.9 - 248.1	USA (Utah)	Hemiprionites walcotti (224174 224175 224179)
Smithian	249.9 - 248.1	Indonesia (West Timor)	Hemiprionites klugi (211577)
Smithian	249.9 - 248.1	Pakistan	Hemiprionites klugi (139437)
Smithian	249.9 - 248.1	China (Guangxi)	Hemiprionites klugi (97169 97185)
Spathian	248.1 - 246.7	USA (Utah)	Hemiprionites walcotti (215350)