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Protozyga

Rhynchonellata - Atrypida - Protozygidae

Taxonomy
Protozyga was named by Hall and Clarke (1893). It is the type genus of Protozygidae.

It was assigned to Zygospirinae by Mitchell (1977); to Atrypida by Sepkoski (2002); and to Protozygidae by Williams et al. (2002).

Species
P. definitiva, P. exigua
Species lacking formal opinion data
P. gastrodes, P. uniplicata

Synonymy list
YearName and author
1893Protozyga Hall and Clarke
1977Protozyga Mitchell
2002Protozyga Sepkoski
2002Protozyga Williams et al. p. 1472

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
RankNameAuthor
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderAtrypidaRzhonsnitskaya 1960
suborderLissatrypidinaCopper 1996
superfamilyProtozygoideaCopper 1986
familyProtozygidaeCopper 1986
genusProtozygaHall and Clarke 1893

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. †Protozyga Hall and Clarke 1893
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†Protozyga definitiva Percival 1991
†Protozyga exigua Hall 1847
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Adult height: 1.0 to < 10g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Comments: BODY SIZE: Data from Williams et al (2002).g
Created: 2009-06-03 12:19:30
Modified: 2009-06-03 14:19:30
Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009

Age range: base of the Middle Ordovician to the top of the Aeronian or 470.00000 to 438.50000 Ma

Collections (41 total)


Time interval Ma Country or state Original ID and collection number
Ordovician485.4 - 443.8USA (New York) P. sp. (332)
Middle Ordovician470.0 - 458.4USA (New York) P. sp. (333)
Chazyan470.0 - 457.3USA (Virginia) P. microscopica (186172)
Whiterockian470.0 - 457.3USA (Nevada) P. sp. (104279)
Gisbornian - Harnagian458.4 - 457.2Australia (New South Wales) P. sp. (2714 2715 2716 2717 2750 2755)
Soudleyan - Marshbrookian458.4 - 454.0Norway P. sp. (2945)
Soudleyan - Marshbrookian458.4 - 454.0United Kingdom (Wales) P. sp. (3372)
Caradoc458.4 - 449.5Myanmar (Southern Shan) P. haydeni (186298)
Caradoc458.4 - 449.5USA (Georgia) P. sp. (33108 33109 33110)
Caradoc458.4 - 449.5USA (Virginia) P. sp. (326) P. uniplicata (37904)
Blackriveran457.3 - 449.6USA (Pennsylvania) P. sp. (162391)
Blackriveran457.3 - 449.6USA (Oklahoma) P. loeblichi (23895)
Rocklandian457.3 - 449.6USA (New York) P. exigua (219799 219800)
Chatfieldian453.8 - 451.0USA (Kentucky) P. sp. (34555)
Eastonian - Marshbrookian452.7 - 454.0Australia (New South Wales) P. sp. (2720)
Eastonian452.7 - 449.5Australia (New South Wales) P. definitiva (2727 2729 2731 2749 2751 166833 166836 166837 166838 166850) P. sp. (2648 2701 2707)
Rawtheyan448.8 - 445.2United Kingdom (England) P. sp. (3667)
Rhuddanian - Aeronian443.4 - 438.5United Kingdom (Wales) P. gastrodes (4954 4961)
Llandovery443.4 - 433.4United Kingdom (Wales) P. gastrodes (3207)