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Hypodicranotus

Trilobita - Asaphida - Remopleurididae

Taxonomy
Hypodicranotus was named by Whittington (1952) [Sepkoski's age data: O Llde-l O Ashg]. It is not extant.

It was assigned to Phacopida by Sepkoski (2002); and to Remopleurididae by Jell and Adrain (2002).

Synonymy list
YearName and author
1952Hypodicranotus Whittington
2002Hypodicranotus Jell and Adrain p. 387
2002Hypodicranotus Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyAsaphoideaSalter 1864
familyRemopleurididaeHawle and Corda 1847
genusHypodicranotusWhittington 1952

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.

G. †Hypodicranotus Whittington 1952
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†Hypodicranotus striatulus Walcott 1875
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Invalid names: Hypodicranotus missouriensis Foerste 1920 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: actively mobilef
Life habit: nektobenthicf
Diet: carnivorec
Vision: well-developedf
Created: 2009-04-13 10:12:30
Modified: 2009-12-14 07:33:04
Source: f = family, c = class
References: Hendy et al. 2009, Aberhan et al. 2004

Age range: base of the Llandeilo to the top of the Richmondian or 461.10000 to 445.50000 Ma

Collections (29 total)


Time interval Ma Country or state Original ID and collection number
Middle Ordovician471.3 - 458.2USA (New York) H. striatulus (181523)
Llandeilo - Aurelucian461.1 - 456.6United Kingdom (Scotland) H. sp. (182196)
Costonian458.2 - 457.2United Kingdom (Scotland) H. sp. (76076)
Aurelucian458.2 - 456.6United Kingdom (Scotland) H. sp. (181539)
Caradoc458.2 - 449.5Canada (Northwest Territories) H. striatulus (25178 25179)
Mohawkian457.3 - 451.0USA (Nevada) H. sp. (321 104490 104491 105552)
Blackriveran457.3 - 449.6USA (Iowa/Wisconsin) H. sp. (23120)
Rocklandian - Kirkfieldian457.3 - 449.6Canada (Northwest Territories) H. sp. (24635)
Shermanian457.3 - 449.6Canada (Northwest Territories) H. sp. (25313 25314 25315 25316 25317 25318)
Chatfieldian453.8 - 451.0USA (Oklahoma) H. sp. (197140)
Chatfieldian453.8 - 451.0USA (New York) H. striatulus (181522)
Edenian451.0 - 450.2Canada (Quebec) H. striatulus (163832 163862 163863 163865)
Edenian451.0 - 450.2Canada (Northwest Territories) H. striatulus (24636 192139)
Richmondian449.6 - 445.5USA (Nevada) H. sp. (78050 78051)
Ashgill449.5 - 443.1USA (Nevada) H. sp. (359)