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Schizonema

Productida - Hesperorthidae

Taxonomy
Schizonema is a genus. It is not extant. Its type is Hebertella (Schizonema) fissistriata.

It was assigned to Dolerorthidae by Temple (1987); to Hesperorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).

Species
S. capillata, S. fissistriata, Schizoramma valentica
Species lacking formal opinion data
S. sowerbyiana, S. walsallii

Synonyms
Synonymy list
YearName and author
1912Schizoramma Foerste
1987Schizonema Temple p. 33
2000Schizonema Williams et al. p. 740
2002Schizonema Sepkoski
2002Schizoramma Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
orderProductidaSarycheva and Sokolskaya 1959
orderOrthidaSchuchert and Cooper 1932
RankNameAuthor
suborderOrthidinaSchuchert and Cooper 1932
phylumMollusca
orderBillingsellida
suborderClitambonitidinaOpik 1934
superfamilyOrthoideaWoodward 1852
familyHesperorthidaeSchuchert and Cooper 1931
genusSchizonema

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.

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†Schizonema capillata Temple 1970
†Schizonema fissistriata Foerste 1912
Invalid names: Schizoramma Foerste 1912 [objective synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Locomotion: stationaryo
Attached: yeso
Life habit: epifaunalo
Diet: suspension feedero
Comments: BODY SIZE: Data from Williams et al (2002).g
Created: 2009-06-04 08:10:24
Modified: 2009-06-04 10:10:24
Source: g = genus, o = order
References: Hendy 2009, Aberhan et al. 2004, Bambach et al. 2007

Age range: base of the Costonian to the top of the Pridoli or 458.20000 to 419.62000 Ma

Collections (59 total)


Time interval Ma Country or state Original ID and collection number
Costonian - Harnagian458.2 - 457.2Sweden Schizoramma sp. (2765)
Rawtheyan448.8 - 445.2United Kingdom (England) S. sp. (3668)
Rhuddanian443.1 - 440.5United Kingdom (Wales) S. capillatum (3459 3469 4964 4965 5048 5055 5058 5059 5060 5063 5075) S. sowerbyiana (3479)
Rhuddanian - Aeronian443.1 - 438.6United Kingdom (Wales) S. capillatum (4929 4933 4934 4942 4946 4949 4950 4961 5000 5012 5025 5027 5031 5032 5042)
Llandovery443.1 - 432.9United Kingdom (Wales) S. capillata (3207)
Llandovery443.1 - 432.9USA (California) Schizoramma nisis (79808 229638)
Silurian443.1 - 419.62USA (Oklahoma) Schizoramma sp. (528)
Aeronian440.5 - 438.6Canada (Quebec) S. sp. (158596)
Telychian438.6 - 432.9United Kingdom (England) Schizoramma valentica (72417)
Telychian - Sheinwoodian438.6 - 430.6USA (Indiana) Schizoramma sp. (26803)
Jaani433.5 - 431.2Lithuania S. walsallii (192581 192582)
Sheinwoodian432.9 - 430.6USA (Indiana) Schizoramma sp. (26805)
Wenlock432.9 - 426.7Lithuania S. sp. (207295) S. walsallii (13748)
Wenlock432.9 - 426.7USA (New York) Schizoramma sp. (541)
Wenlock - Ludlow432.9 - 422.7USA (California) Schizoramma sp. (226414)
Wenlock - Silurian432.9 - 419.62USA (Wisconsin) Schizoramma sp. (13040)
Gorstian426.7 - 425.0USA (Oklahoma) Schizoramma hami (170221)
Ludlow426.7 - 422.7USA (Oklahoma) Schizoramma hami (170246)
Ludlow - Pridoli426.7 - 419.62USA (Oklahoma) Schizoramma hami (170222 170228 170238 170240 170248)
Ludfordian425.0 - 422.7USA (Oklahoma) Schizoramma hami (170224)
Pridoli422.7 - 419.62USA (Oklahoma) Schizoramma hami (170234 170243 170244 170254 170262 170264)
Pridoli422.7 - 419.62Kazakhstan Schizoramma rigida (13973)