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Agnostida - Calodiscidae

Calodiscus was named by Howell (1935) [Sepkoski's age data: Cm Atda-u Cm Boto-l Sepkoski's reference number: 458,461].

It was assigned to Calodiscidae by Whittington et al. (1997); to Agnostida by Sepkoski (2002); and to Eodiscidae by Skovsted (2006).

Species lacking formal opinion data

Synonymy list
YearName and author
1935Calodiscus Howell
1943Brevidiscus Kobayashi
1997Calodiscus Whittington et al. p. 390
2002Calodiscus Sepkoski
2006Calodiscus Skovsted p. 1093

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
orderAgnostidaSalter 1864
familyCalodiscidaeKobayashi 1943
genusCalodiscusHowell 1935

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. †Calodiscus Howell 1935
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Calodiscus helena Walcott 1890
Calodiscus lobatus Hall 1847
Invalid names: Brevidiscus Kobayashi 1943 [synonym]
No diagnoses are available
No measurements are available
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Adult height: 0.1 to < 1.0g
Folds: noneg
Ribbing: noneg
Spines: noneg
Internal reinforcement: noneg
Locomotion: slow-movingo
Life habit: epifaunalo
Diet: detritivoreo
Vision: blindg
Comments: BODY SIZE: Data from Whittington et al. (1997).g
Created: 2009-06-08 08:49:12
Modified: 2009-12-19 07:46:32
Source: g = genus, o = order
References: Hendy 2009, Kiessling 2004

Age range: base of the Duyunian to the top of the Furongian or 514.00000 to 485.40000 Ma

Collections (32 total)

Time interval Ma Country or state Original ID and collection number
Atdabanian - Lenian521.0 - 510.2Germany (Saxony) C. lobatus (6899)
Atdabanian - Toyonian521.0 - 510.2China (Gansu) C. tianshanicus (181362)
Atdabanian - Duyunian521.0 - 509.0China (Gansu) C. tianshanicus (181363)
Branchian517.1 - 509.0United Kingdom (England) C. lobatus (79931 79932)
Branchian517.1 - 509.0USA (Massachusetts) C. lobatus (56854)
Branchian517.1 - 509.0Canada (Newfoundland and Labrador) Microdiscus helena (99495)
Botomian516.0 - 512.9Russian Federation C. resimus (225138)
Botomian516.0 - 512.9Kazakhstan C. korolevi (99366)
Botomian516.0 - 512.9Russian Federation (Tuva) C. sp. (81479)
Lenian516.0 - 510.2USA (New York) C. fissifrons (189) C. lobatiis, C. theokritoffi (225082)
Dyeran515.3 - 511.2Canada (Newfoundland and Labrador) C. lobatus (50783)
Dyeran515.3 - 511.2Canada (Labrador) C. lobatus (195907)
Dyeran515.3 - 511.2USA (New York) C. lobatus (78762 225104)
Dyeran515.3 - 511.2Greenland C. lobatus (49458 49459 49462 49464 67779 67793)
Dyeran515.3 - 511.2Canada (Newfoundland) C. lobatus (195905 195908 195909 195930)
Duyunian514.0 - 509.0Greenland C. lobatus (225100)
Amgan510.2 - 504.5Germany C. (162994)
Solvan510.2 - 504.5Russian Federation (Kemorovo) C. fissifrons (57029)
Middle Cambrian509.0 - 497.0Italy (Iglesiente) C. foveolatus (139879)
Middle Cambrian509.0 - 497.0France (Alsace) C. foveolatus (64523)
Furongian497.0 - 485.4Svalbard and Jan Mayen C. agnostoides, C. sp. (212582)