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Hadrotreta

Lingulata - Acrotretida

Taxonomy
Hadrotreta was named by Rowell (1966).

It was assigned to Acrotretinae by Brock and Cooper (1993); to Acrotretidae by Williams et al. (2000); to Acrotretida by Bengtson (1992), Sepkoski (2002); and to Acrotretoidea by Skovsted et al. (2017).

Species
H. primaea, H. taconica
Species lacking formal opinion data
H. rara

Synonymy list
YearName and author
1966Hadrotreta Rowell
1992Hadrotreta Bengtson p. 1030
1993Hadrotreta Brock and Cooper p. 780
2000Hadrotreta Williams et al. p. 112
2002Hadrotreta Sepkoski
2017Hadrotreta Skovsted et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
RankNameAuthor
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
subphylumLinguliformeaWilliams et al. 1996
classLingulataGorjansky and Popov 1985
orderAcrotretidaKuhn 1949
superfamilyAcrotretoidea
genusHadrotretaRowell 1966

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. †Hadrotreta Rowell 1966
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†Hadrotreta primaea Walcott 1902
†Hadrotreta taconica Walcott 1887
†Vandalotreta djagoran Walcott 1902
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphatico
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Folds: noneg
Ribbing: noneg
Spines: noneg
Internal reinforcement: noneg
Environment: marineuc
Locomotion: stationaryo
Attached: yeso
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Comments: BODY SIZE: Data from Williams et al. (2000).g
Created: 2009-06-04 15:08:13
Modified: 2009-06-04 17:08:13
Source: g = genus, o = order, c = class, uc = unranked clade
References: Hendy 2009, Aberhan et al. 2004, Nesnidal et al. 2013

Age range: base of the Toyonian to the top of the Delamaran or 512.90000 to 506.50000 Ma

Collections (73 total)


Time interval Ma Country or state Original ID and collection number
Caerfai538.8 - 509.0USA (Nevada) H. sp. (190)
Lenian516.0 - 510.2Antarctica (South Shetland Islands) Vandalotreta djagoran (49692)
Dyeran515.3 - 511.2Canada (Labrador) H. taconica (195907 196252 196253 196254 196256 196262 196263)
Dyeran515.3 - 511.2USA (Nevada) H. primaea (96417)
Dyeran515.3 - 511.2Canada (Newfoundland) H. sp., H. taconica (196284) H. taconica (196282 196283 196285 196286 196287 196288 196289 196295 196296 196318 196319 196320 196321 196322 196324 196328 196330 196331 196333 196335 196337 196339 196340 196342 196346 196347 196348 196349 196350 196351 196352 196353)
Dyeran515.3 - 511.2USA (Pennsylvania) H. sp. (97879)
Stage 4514.0 - 509.0Mexico (Sonora) H. rara (234897)
Toyonian512.9 - 510.2Australia (South Australia) H. primaeva (64460 64461 64462) H. sp. (64459) Vandalotreta djagoran (96929)
Delamaran511.2 - 506.5USA (California) Acrotreta primaeva (219701)
Solvan510.2 - 504.5Australia (New South Wales) H. primaeva (56531)
Wuliuan509.0 - 504.5Mexico (Sonora) H. rara (234898)
Middle Cambrian509.0 - 497.0Australia (Northern Territory) H. djagoran (59989 59991 59993 59994 59998 59999 60000 60014 60015 60018 60019 60022 60026 60028 60030 60034 60035 60045 60075) H. nyapungensis (60027)