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Arthroclema

Stenolaemata - Cryptostomata - Arthrostylidae

Taxonomy
Arthroclema was named by Billings (1862). Its type is Arthroclema pulchellum.

It was assigned to Arthrostylidae by Bassler (1911), Bassler (1953) and Lobdell (1992); and to Cryptostomata by Sepkoski (2002).

Synonymy list
YearName and author
1862Arthroclema Billings
1911Arthroclema Bassler
1953Arthroclema Bassler p. G128
1992Arthroclema Lobdell
2002Arthroclema Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
RankNameAuthor
phylumBryozoaEhrenberg 1831
classStenolaemataBorg 1926
orderCryptostomataVine 1884
suborderRhabdomesinaAstrova and Morozova 1956
familyArthrostylidaeUlrich 1882
genusArthroclemaBillings 1862

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. †Arthroclema Billings 1862
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†Arthroclema armatum Ulrich 1890
†Arthroclema brevis Lobdell 1992
†Arthroclema pentagonalis Lobdell 1992
†Arthroclema pulchellum Billings 1862
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Environment: marineuc
Locomotion: stationaryc
Attached: yesc
Life habit: epifaunalp
Diet: suspension feederc
Vision: blindc
Created: 2007-09-18 02:11:14
Modified: 2010-02-15 07:19:29
Source: c = class, p = phylum, uc = unranked clade
References: Smith et al. 2006, Nesnidal et al. 2013, Kiessling 2004

Age range: base of the Middle Ordovician to the top of the Caradoc or 470.00000 to 449.50000 Ma

Collections (18 total)


Time interval Ma Country or state Original ID and collection number
Volkhov471.1 - 469.2Estonia A. armatum (167569)
Middle Ordovician470.0 - 458.4USA (New York) A. sp. (334)
Sandbian458.4 - 453.0Argentina (San Juan) A. sp. A (226179)
Caradoc458.4 - 449.5USA (Georgia) A. armatum (32880 32881 32882 33065)
Blackriveran457.3 - 449.6USA (Tennessee) A. striatum (5331)
Rocklandian457.3 - 449.6USA (Minnesota) A. cornutum (219965)
Shermanian457.3 - 449.6USA (Minnesota) A. armatum (167576 167611)
Chatfieldian453.8 - 451.0USA (New York) A. sp. (433)
Richmondian449.6 - 445.5Canada (Manitoba) A. pentagonalis (28023)
Richmondian449.6 - 445.5USA (North Dakota) A. brevis, A. pentagonalis (64599 64602 64606) A. pentagonalis (64600 64604)