PBDB Taxon

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Pelagiella

Helcionelloida - Pelagiellida - Pelagiellidae

Taxonomy

Pelagiella was named by Matthew (1895) [Sepkoski's age data: Cm Atda-u Cm Fran-u Sepkoski's reference number: 270,580]. Its type is Cyrtolites atlantoides. It is the type genus of Pelagiellidae.

It was assigned to Cyrtonellida by Bengtson (1992); to Pelagiellida by Sepkoski (2002); to Helcionellidae by Gubanov et al. (2004), Wotte (2006); and to Pelagiellidae by Knight (1952), Knight et al. (1960), Runnegar and Jell (1976), Linsley and Kier (1984), Missarzhevsky (1989), Brock and Cooper (1993), Parkhaev (2001), Landing et al. (2002), Parkhaev (2002), Parkhaev (2004), Bouchet et al. (2005), Kouchinsky et al. (2011), Thomas et al. (2020), Wagner (2023), Ebbestad et al. (2024), Oh et al. (2025).

Species lacking formal opinion data

P. chronus, P. primordialis, P. primordialis

Synonyms

Costipelagiella was named by Horný (1964) [Sepkoski's age data: Cm lMid Cm uMid-u Sepkoski's reference number: 529]. It is not extant.

It was synonymized subjectively with Pelagiella by Kouchinsky et al. (2011).

It was assigned to Pelagiellidae by Runnegar and Jell (1980), Linsley and Kier (1984), Peel (1988), Parkhaev (2002); and to Pelagiellida by Sepkoski (2002).
Auriculatespira was named by Zhou and Xiao (1984).

It was corrected as Auriculaspira by Bengtson (1992); it was synonymized subjectively with Pelagiella by Parkhaev (2001).

It was assigned to Cyrtonellida by Bengtson (1992).
Cambretina was named by Horný (1964) [Sepkoski's age data: Cm lMid]. It is not extant.

It was synonymized subjectively with Pelagiella by Kouchinsky et al. (2011).

It was assigned to Pelagiellidae by Runnegar and Jell (1980), Linsley and Kier (1984); and to Pelagiellida by Sepkoski (2002).
Protoscaevogyra was named by Kobayashi (1939) [Sepkoski's age data: Cm Dres-l].

It was synonymized subjectively with Pelagiella by Knight et al. (1960), Wagner (2023).

It was assigned to Protoscaevogyridae by Kobayashi (1962); to Onychochilidae by Linsley and Kier (1984); to Hyperstrophina by Sepkoski (2002); and to Pelagiellidae by Runnegar and Jell (1976), Bouchet et al. (2005).

Synonymy list

Year	Name and author
1895	Pelagiella Matthew
1939	Protoscaevogyra Kobayashi
1952	Pelagiella Knight
1960	Pelagiella Knight et al. p. 323
1962	Protoscaevogyra Kobayashi p. 17
1964	Cambretina Horný
1964	Costipelagiella Horný
1976	Pelagiella Runnegar and Jell p. 133
1976	Protoscaevogyra Runnegar and Jell p. 134
1980	Cambretina Runnegar and Jell p. 111
1980	Costipelagiella Runnegar and Jell p. 111
1984	Cambretina Linsley and Kier
1984	Costipelagiella Linsley and Kier
1984	Pelagiella Linsley and Kier
1984	Protoscaevogyra Linsley and Kier
1985	Auriculaspira Pei p. 395
1988	Costipelagiella Peel p. 164
1989	Pelagiella Missarzhevsky p. 182
1992	Auriculaspira Bengtson p. 1026
1992	Pelagiella Bengtson p. 1027
1993	Pelagiella Brock and Cooper p. 778
2001	Pelagiella Parkhaev p. 191
2002	Pelagiella Landing et al. p. 299
2002	Costipelagiella Parkhaev p. 37
2002	Pelagiella Parkhaev p. 37
2002	Cambretina Sepkoski
2002	Costipellagiella Sepkoski
2002	Pelagiella Sepkoski
2002	Protoscaevogyra Sepkoski
2004	Pelagiella Gubanov et al.
2004	Pelagiella Parkhaev p. 603
2005	Pelagiella Bouchet et al. p. 128
2005	Protoscaevogyra Bouchet et al. pp. 142, 241
2006	Pelagiella Wotte p. 151
2011	Pelagiella Kouchinsky et al. p. 135
2020	Pelagiella Thomas et al. p. 618
2023	Pelagiella Wagner p. G
2024	Pelagiella Ebbestad et al.
2025	Pelagiella Oh et al. p. 13

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa

Rank	Name	Author
phylum	Mollusca
class	Helcionelloida	Peel 1991
order	Pelagiellida	MacKinnon 1985
family	Pelagiellidae
genus	Pelagiella

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. †Pelagiella Matthew 1895

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†Pelagiella adunca He et al. 1984

†Pelagiella asymmetrica Ermak and Pelman 1986

†Pelagiella atlantoides Mathews 1894

†Pelagiella atlasensis Geyer 1986

†Pelagiella bentica Ermak and Pelman 1986

†Pelagiella broeggeri Grönwall 1902

†Pelagiella corinthiana Runnegar and Jell 1976

†Pelagiella crassa Geyer 1986

†Pelagiella deltoides Runnegar and Jell 1976

†Pelagiella escayachensis Kobayashi 1937

†Pelagiella exigua Resser and Howell 1938

†Pelagiella lorenzi Kobayashi 1939

†Pelagiella madianensis Zhou and Xiao 1984

†Pelagiella mareki Horný 1964

†Pelagiella nevadense Skovsted 2006

†Pelagiella primaeva Billings 1872

†Pelagiella serpentis Ermak and Pelman 1986

†Pelagiella subangulata Tate 1892

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Invalid names: Pelagiella emeishanensis Xing 1984 [synonym]

Invalid names: Auriculaspira Zhou and Xiao 1984 [synonym], Cambretina Horný 1964 [synonym], Costipelagiella Horný 1964 [synonym], Protoscaevogyra Kobayashi 1939 [synonym]

Diagnosis

Reference	Diagnosis
A. Kouchinsky et al. 2011	"Shell dextral, composed of 1–2 rapidly expanding whorls. The spiral surface is flattened, slightly convex or depressed. The aperture is simple, in some cases having a rather prominent auricle."

Measurements

No measurements are available

Composition:

aragonitec

Entire body:

yesg

Adult length:

0.1 to < 1.0g

Adult width:

0.1 to < 1.0g

Thickness:

thing

Folds:

noneg

Ribbing:

noneg

Spines:

noneg

Internal reinforcement:

noneg

Environment:

marinec

Locomotion:

actively mobileg

Life habit:

epifaunalg

Diet:

grazerg

Vision:

limitedc

Comments:

DIMENSIONS & MORPHOLOGY: Based on Pelagiella adunca. LIFE HISTORY: Surficial, fully motile slow, grazing according to Bambach et al (2007).g

Created:

2009-03-16 08:26:03

Modified:

2009-09-21 14:41:40

Source: g = genus, c = class

References: Gubanov et al. 2004, Hendy et al. 2009

Age range: base of the Nemakit-Daldynian to the top of the Steptoean or 538.80000 to 493.50000 Ma

Collections (273 total)

Time interval	Ma	Country or state	Original ID and collection number
Nemakit-Daldynian	538.8 - 525.5	Poland	P. sp. (72260)
Placentian	538.8 - 516.2	USA (Massachusetts)	P. sp. (56833 56837 56853)
Early/Lower Cambrian	538.8 - 506.5	Australia (South Australia)	P. subangulata (215353 215354 215369 215377 215443 215444 215446 215447 215448 215449 215450 215451 215452 275191 275203)
Cambrian	538.8 - 486.85	USA (New York)	P. sp. (254)
Tommotian	525.5 - 521.0	Australia (South Australia)	P. sp. (155246 155247)
Tommotian	525.5 - 521.0	Canada (Newfoundland and Labrador)	Archaeospira primaevum (56958 56959)
Tommotian	525.5 - 521.0	Russian Federation	P. sp. (233041)
Tommotian - Botomian	525.5 - 512.1	Iran	P. lorenzi (10530)
Atdabanian	521.0 - 516.0	Antarctica	P. subangulata (199526)
Atdabanian	521.0 - 516.0	Spain (Andalusia)	P. adunca (49474 49475 49477 49480)
Atdabanian	521.0 - 516.0	Australia (South Australia)	P. madianensis (96454) P. sp. (155234 155239 155242) P. subangulata (49618 96919 96920 96931 96960 96966 97722 97725 97739 97740 97741 97742 97744 97746 97747 97748 97749 97750 97778 97779 97783 140335 140336 140339 140342)
Atdabanian	521.0 - 516.0	China (Yunnan)	P. subangulata (86689 86690)
Atdabanian	521.0 - 516.0	Russian Federation (Siberia)	P. lorenzi (56855)
Atdabanian	521.0 - 516.0	United Kingdom (England)	P. sp. (79933 79934)
Atdabanian	521.0 - 516.0	China (Shaanxi)	P. sp. (8091)
Atdabanian	521.0 - 516.0	India (Tehri Garhwal)	P. sp. (139522)
Atdabanian	521.0 - 516.0	Kyrgyzstan	P. lorenzi (99328 99329)
Atdabanian	521.0 - 516.0	Russian Federation (Chitinskaya oblast)	P. adunca (49373 49377 49378 49379 49380 49381 49382 49388 49389 49390 49391 49392)
Atdabanian	521.0 - 516.0	Russian Federation (Yakutia)	P. lorenzi (10115)
Nangaoian	521.0 - 514.5	China (Henan)	Auriculaspira adunca (96525) Auriculatespira adunca (49532) P. sp., Auriculaspira adunca (96523)
Stage 3	521.0 - 514.5	Australia (South Australia)	P. sp. (275266 275276 275277 275278 275304 275307 275308 275311 275312 275313 275318 275320 275329 275339 275340 275341 275342 275343 275344 275357 275358 275361) P. subangulata (215352 275181 275186 275188 275206 275216 275217 275221 275227 275228 275229 275230 275235 275239)
Atdabanian - Botomian	521.0 - 512.1	China (Anhui)	Auriculaspira adunca, Auriculaspira madianensis (107632)
Atdabanian - Botomian	521.0 - 512.1	Antarctica (South Shetland Islands)	P. madianensis (49691)
Atdabanian - Botomian	521.0 - 512.1	Australia (Northern Territory)	P. sp. (80920 80921)
Atdabanian - Botomian	521.0 - 512.1	Canada (Nova Scotia)	P. sp. (9391)
Atdabanian - Lenian	521.0 - 508.2	Germany (Saxony)	P. lorenzi, P. emeishanensis, P. lorenzi (6899)
Montezuman	520.0 - 515.3	USA (Nevada)	P. subangulata (199532)
Montezuman	520.0 - 515.3	Mexico	P. sp. (203103 203107)
Branchian	516.2 - 506.5	United Kingdom (England)	P. sp. (79931 79932)
Branchian	516.2 - 506.5	Canada (Newfoundland and Labrador)	Platyceras primaevum (99495)
Botomian	516.0 - 512.1	China (Shaanxi)	P. spp., P. madianensis (199515 199516 199517 199534)
Botomian	516.0 - 512.1	Australia (South Australia)	P. adunca, P. subangulata (97751 97770 97773 97774 97775) P. madianensis (67981 96963 96964 156332 172620) P. subangulata (96932 96965 97745 97771 97772 97776 97777) P. subangulata, P. madianensis (50793 96914 96915 96916 96917 96958 96959 97723 97724 97726 97730)
Botomian	516.0 - 512.1	Russian Federation (Chitinskaya oblast)	P. adunca (49383 49384 49385 49387)
Botomian	516.0 - 512.1	Antarctica	P. subangulata (199520 199522 199524 199527 199529 199531)
Botomian	516.0 - 512.1	Russian Federation (Siberia)	P. sp. 1, P. sp. 2 (174258 174260)
Botomian	516.0 - 512.1	USA (Massachusetts)	P. sp. (56839)
Botomian	516.0 - 512.1	Russian Federation (Yakutia)	P. lorenzi (45855)
Lenian	516.0 - 508.2	Spain (Asturias)	P. crassa (50550)
Lenian	516.0 - 508.2	Antarctica (South Shetland Islands)	P. madianensis (49692)
Dyeran	515.3 - 509.7	USA (New York)	P. primaeva (78762 78763 78764 78765 78767 171821) Platyceras primaevum (203403)
Dyeran	515.3 - 509.7	Canada (Quebec)	P. primaeva (78753 78754 78755)
Dyeran	515.3 - 509.7	USA (Nevada)	Costipelagiella nevadense (64481 64521 172787 199533) P. sp. (7787)
Dyeran	515.3 - 509.7	Canada (Newfoundland and Labrador)	P. sp. (50783 78747 78748 78749 78750)
Dyeran	515.3 - 509.7	Greenland (Peary Land)	P. sp. (210618)
Dyeran	515.3 - 509.7	USA (Pennsylvania)	P. exigua (192 9314 226185 226194) P. sp. (97879)
Dyeran	515.3 - 509.7	Greenland	P. sp. (219446) P. subangulata (49456 49457 49458 49459 49461 49463 49464 49471 49473 67779 67781)
Stage 4	514.5 - 506.5	Sweden	P. sp. (236571)
Stage 4	514.5 - 506.5	Greenland	P. sp. (275941)
Toyonian	512.1 - 508.2	Australia (South Australia)	P. adunca (64459 64460 64461 64462) P. subangulata (97698 97991 118171) P. subangulata, P. madianensis (96921 96929 118172)
Toyonian	512.1 - 508.2	Türkiye (Konya)	P. sp. (91535)
Delamaran	509.7 - 505.3	Morocco	P. atlasensis (174203 174223)
Amgan	508.2 - 504.5	Russian Federation (Siberia)	P. spp. (110619 110821)
Solvan	508.2 - 504.5	Russian Federation (Siberia)	P. spp. (49429 49430) P. spp., Costipelagiella zazvorkai, Cambretina mareki (49431)
Solvan	508.2 - 504.5	Morocco (High Atlas)	P. atlasensis (50546 50548 50549) P. lorenzi (50547)
Solvan	508.2 - 504.5	Morocco	P. atlasensis (9122)
Solvan	508.2 - 504.5	Kazakhstan	P. sp. (56537)
Solvan - Menevian	508.2 - 499.5	Czechia	P. sp. (203343)
Wuliuan	506.5 - 504.5	Greenland (Peary Land)	P. sp. (275942 275943)
Middle Cambrian	506.5 - 497.0	Czechia (Bohemia)	Costipelagiella zazvorkai (67775)
Middle Cambrian	506.5 - 497.0	Greenland	P. sp. (193553)
Floran	504.5 - 503.0	Australia (Queensland)	P. deltoides (93407 93409) P. deltoides, P. corinthiana (56809 56810)
Drumian	504.5 - 500.5	Czechia (Central Boemian)	Cambretina sp., Costipelagiella sp. (76456)
Floran - Undillan	504.5 - 500.5	Australia (New South Wales)	P. deltoides (9394)
Floran - Undillan	504.5 - 500.5	Antarctica	P. sp. (69505)
Marjumian	504.5 - 497.0	USA (Wisconsin)	P. sp. (230)
Marjumian	504.5 - 497.0	USA (Georgia)	P. sp. (64486)
Marjumian	504.5 - 497.0	Greenland (Peary Land)	Costipelagiella kochi (49449)
Wangcunian	504.5 - 497.0	China (Shandong)	P. chronus (232858)
Undillan	503.0 - 500.5	Germany	P. sp. A (186151 197547)
Boomerangian	500.5 - 499.0	New Zealand (Nelson)	Costipelagiella zazvorkai (7897)
Steptoean	497.0 - 493.5	USA (Nevada and Utah)	P. sp. (74910)
Dresbachian	497.0 - 486.85	USA (Utah)	P. sp. (239)
Dresbachian	497.0 - 486.85	USA (Indiana)	P. sp. (232)
Dresbachian	497.0 - 486.85	USA (Nevada)	P. sp. (241)
Franconian	497.0 - 486.85	USA (Idaho)	P. sp. (251)
Franconian	497.0 - 486.85	USA (Montana)	P. primordialis (249)
Franconian	497.0 - 486.85	USA (Wisconsin)	P. sp. (248 267)
Furongian	497.0 - 486.85	Svalbard and Jan Mayen	Platyceras primaevum (212582)