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outline. The axis is about 20% of the width of the cephalon. The cephalon is half-round, and almost twice as wide as long (along the axis). The (posterolateral) corners of the cephalon are acute, ending in short stout spines. The back margin of the cephalon from the spine to the midline has in the pleural region a forward angle and is first concave, then convex, then concave again, attaining a backward angle when reaching the axis, and finally convex, with a small node or median spine reaching the back margin. This pattern is repeated with all thorax segments. Antennae are not known. Dorsal eyes are absent. The thorax segments are each about 1.5 millimetres (0.06 in) along the axis. The tail shield is dominated by a pair of large segmental marginal spines, reminiscent of large (or macropleural) spines in the thorax and of pygidial spines of certain trilobites. The one node it carries is larger and more sharply defined than the nodes on the segments. The frontal border of the tail shield is convex and curves laterally into the large spines which extend postero-laterally, constituting half the total body length. The back margin of the spines is concave and merges into the second pair of short, broad, triangular spines. Body parts on the belly (or ventral) side are not known, including any appendages.
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is almost flat (dorso-ventrally). Its body is narrowly oval in general outline, disregarding the two large spines. The upper non-calcified (or dorsal) side of the body consists of a cephalon, 5 thorax segments, and a pygidium. The axis is slightly raised, but without a discernible furrow defining its
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was probably a marine bottom dweller, that lived in deeper water. This may be deduced from the dominance of eyeless forms and the absence of seaweeds at the collection site.
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also differs by having a lengthwise mid-ridge on cephalon and pygidium, and the pygidium lacks marginal spines.
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351:). The species was named after Jon R. Ineson to honour him for his studies of the Cambrian of North Greenland.
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281:) with stubby genal spines, 5 thorax segments also ending in stubby genal spines, and a tailshield (
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566:"A new arthropod from the Lower Cambrian Sirius Passet fossil-lagerstätten of North Greenland"
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has five pairs of modest marginal spines, the 2 pairs of spines and one node in
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suggest its pygidium is a composite of only two segments.
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is isopygous, with 6 thorax segments instead of the 5 of
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of small (about 2.5 centimetres or 1.0 inch long) marine
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has been collected from the Lower
Cambrian (Atdabanian)
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of unclear affiliation, that lived during the early
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431:has 4 thorax segments. Although the pygidium of
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301:The name of the genus is a compound of the
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564:John S. Peel & Martin Stein (2009).
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411:are similar in general body form to
396:Differences with recognized Liwiidae
382:Fossil and drawing of the carapace
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259:were collected from the Lower
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748:Fossil taxa described in 2009
718:Prehistoric arthropod genera
508:is unclear. Its likeness to
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753:Cambrian genus extinctions
504:The taxonomic position of
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273:looks like a soft eyeless
520:could be assigned to the
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126:Scientific classification
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592:10.3140/bull.geosci.1158
16:Extinct marine arthropod
578:Bulletin of Geosciences
473:82.78500°N 106.20194°E
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185:Peel & Stein, 2009
738:Sirius Passet fossils
227:Peel & Stein 2009
733:Fossils of Greenland
269:of North Greenland.
723:Cambrian arthropods
478:82.78500; 106.20194
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289:(i.e. the genus is
728:Cambrian Greenland
500:Taxonomic position
494:Aaveqaspis inesoni
389:Aaveqaspis inesoni
267:fossil-Lagerstätte
221:Aaveqaspis inesoni
25:Aaveqaspis inesoni
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630:Taxon identifiers
402:Buenaspis forteyi
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120:Life restoration
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662:Wikispecies
476: /
355:Description
303:Greenlandic
255:remains of
712:Categories
668:Aaveqaspis
638:Aaveqaspis
617:Aaveqaspis
538:References
525:Nectaspida
518:Aaveqaspis
506:A. inesoni
464:106°12′7″E
448:A. inesoni
437:A. inesoni
425:B. forteyi
421:A. inesoni
417:B. forteyi
413:A. inesoni
287:A. inesoni
271:Aaveqaspis
257:Aaveqaspis
245:arthropods
236:Aaveqaspis
179:Aaveqaspis
149:Arthropoda
33:Atdabanian
653:Q18707590
510:Buenaspis
461:82°47′6″N
297:Etymology
291:monotypic
275:trilobite
191:Species:
132:Kingdom:
647:Wikidata
532:Liwiidae
283:pygidium
279:cephalon
261:Cambrian
251:period.
249:Cambrian
144:Phylum:
137:Animalia
695:1469873
682:9417157
489:Habitat
170:Genus:
156:Class:
100:↓
529:family
345:shield
317:walrus
253:Fossil
690:IRMNG
522:order
514:Liwia
433:Liwia
429:Liwia
336:aspís
330:ἀσπίς
327:word
308:aaveq
305:word
241:genus
239:is a
677:GBIF
527:and
512:and
405:and
39:PreꞒ
587:doi
571:PDF
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218:†
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175:†
94:N
84:K
79:J
74:T
69:P
64:C
59:D
54:S
49:O
44:Ꞓ
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