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139:
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305:, a dorsal fin and an anal fin near the rearmost third of its body. Earlier reconstructions depict the creature as having side-fins running the length of its body, starting from behind the branchial openings to the tip of its tail: new research demonstrates that such "fins" are actually deformations of the bodywall as the corpse was being squished post-burial. In life,
343:
vertebrate known. Since then, it has been reclassified by many workers as having many different affinities, such as an "unspecialized anaspid", or as a sister taxon to the lampreys, its difficulty in classification due to difficulties in reconstructing the anatomy; it does not possess any usual
309:
resembled a lamprey with a very small mouth. Because the fossil had no teeth, teeth-like structures, nor suggestions of either in its mouth, it was not carnivorous like many modern
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1144:
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313:. It was more likely to have been a filter-feeder or a detritus-feeder, possibly in the manner of larval lampreys.
301:. It had an elongated body, and is thought to have had, in comparison with relatives known from intact bodies like
138:
320:- features that suggest that it was a basal member of that clade. It is also the earliest known vertebrate with
513:"New evidence on Jamoytius kerwoodi White, an important ostracoderm from the Silurian of Lanarkshire, Scotland"
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was originally named by Errol White on the basis of two specimens (the generic name is a reference to
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Sansom, Robert S; Kim
Freedman; Sarah E Gabbott; Richard J. Aldridge; Mark A. Purnell (2010).
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Today, G.; Blom, Henning; MΓ€rss, Tiiu (2003). "Fossils explained 43: Anaspid fishes".
472:"Taphonomy and Affinity of an Enigmatic Silurian Vertebrate, Jamoytius Kerwoodi White"
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The fish had a cartilaginous skeleton, and a branchial basket resembling the
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Ritchie, A. (1960). "A new interpretation of
Jamoytius kerwoodi White".
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420:, a new chordate from the Silurian of Lanarkshire [Scotland]"
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Baltimore: The Johns
Hopkins University Press, 1996.
339:) and, at the time, it was considered to be the most
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376:The Rise of Fishes: 500 Million Years of Evolution
291:is now recognized as the best-known member of the
324:. It also possessed weakly mineralised scales.
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287:Long thought of as a "basal anaspid,"
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264:is an extinct species of primitive,
27:Extinct genus of jawless vertebrates
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565:10.1046/j.1365-2451.2003.00413.x
497:10.1111/j.1475-4983.2010.01019.x
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355:is now placed in its own order
1:
1145:Fossil taxa described in 1946
414:White, E.I. (March 1, 1946).
276:in Scotland, dating to the
1161:
1140:Silurian animals of Europe
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436:10.1017/S0016756800082856
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134:Scientific classification
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526:: 21β39. Archived from
365:and similar agnathans.
274:Patrick Burn Formation
1135:Silurian jawless fish
1102:Paleobiology Database
511:Ritchie, A. (1968).
650:Paleontology portal
614:1960Natur.188..647R
588:The Ancestor's Tale
488:2010Palgy..53.1393S
424:Geological Magazine
328:History of research
1093:Jamoytius kerwoodi
1063:Jamoytius kerwoodi
418:Jamoytius kerwoodi
261:Jamoytius kerwoodi
246:Jamoytius kerwoodi
1117:
1116:
1055:Taxon identifiers
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1045:
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585:Dawkins, Richard
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51:443.8β427.4
16:(Redirected from
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930:"Naked anaspids"
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827:Rhyncholepididae
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482:(6): 1393β1409.
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359:, together with
337:J. A. Moy-Thomas
322:camera-type eyes
278:Llandovery epoch
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225:J. kerwoodi
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42:Llandovery Epoch
40:Temporal range:
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357:Jamoytiiformes
349:synapomorphies
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299:Jamoytiiformes
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553:Geology Today
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533:on 2011-07-16
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351:. Currently,
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280:of the Early
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234:Binomial name
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46:Wenlock Epoch
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843:Rhyncholepis
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816:Hoburgilepis
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761:Pterygolepis
759:
752:
747:Kerreralepis
745:
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535:. Retrieved
528:the original
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447:. Retrieved
430:(2): 89β97.
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293:Hyperoartian
288:
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270:jawless fish
260:
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210:
209:
35:
29:
1087:Wikispecies
998:Euphanerops
977:Achanarella
871:Vesikulepis
850:Rytidolepis
800:Birkeniidae
782:Tahulalepis
709:Subphylum:
362:Euphanerops
353:J. kerwoodi
318:cyclostomes
307:J. kerwoodi
303:Euphanerops
289:J. kerwoodi
252:White, 1946
197:Jamoytiidae
1124:Categories
956:Cyclostomi
898:Manbrookia
891:Liivilepis
864:Silmalepis
836:Maurylepis
775:Ruhnulepis
740:Cowielepis
711:Vertebrata
537:2007-10-31
449:2007-10-31
401:References
942:Jamoytius
697:Kingdom:
573:129511577
333:Jamoytius
218:Species:
211:Jamoytius
157:Kingdom:
151:Eukaryota
36:Jamoytius
1130:Anaspida
1072:Wikidata
1038:Category
984:Ciderius
949:Lasanius
809:Birkenia
726:Anaspida
705:Chordata
703:Phylum:
699:Animalia
687:Anaspida
444:86329654
346:chordate
311:lampreys
284:period.
282:Silurian
190:Family:
171:Chordata
167:Phylum:
161:Animalia
147:Domain:
630:4214197
610:Bibcode
484:Bibcode
243:†
222:†
203:Genus:
177:Order:
1078:Q46680
628:
602:Nature
571:
442:
382:
268:-like
1107:34137
626:S2CID
569:S2CID
531:(PDF)
516:(PDF)
440:S2CID
341:basal
296:order
380:ISBN
59:Preκ
618:doi
606:188
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266:eel
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109:Pg
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207:β
194:β
181:β
114:N
104:K
99:J
94:T
89:P
84:C
79:D
74:S
69:O
64:κ
20:)
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