512:
tips. There is coarse parallel ridging running the length of the mesosoma, and the gaster, waist, and head are smooth with no surface sculpturing. The head is rectangular in outline, being 1.3 times as long as wide and with very slightly convex sides. The rear margin of the head also is slightly convex and the rear corners are "narrowly" rounded. Two lobes are well developed toward the front of the head, and partly cover the bases of the antennae and antennal sockets. The antennae are composed of 12 segments, each of the segments being elongated, and the last four at the tip forming a club. At the base, the
111:
431:
419:
129:
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has a 4.0 mm (0.16 in) long body and a 0.77 mm (0.030 in) long head. The body has a number of long hairs scattered on it, with a large amount present on the upper surface of the gaster, while the tarsi have a dense covering of hairs that lie almost flat and curl upward at the
358:
suggested a tentative
Paleocene age, which was followed by subsequent authors through 2013. Research published in 1999 on the Naibuchi Formation, in which Sakhalin amber is directly preserved, however, gives a Middle Eocene age based on geological and paleobotanical context. The Sakhalin amber
414:
was the oldest described
Myrmicinae species belonging to a living genus of the subfamily. They noted older fossils are reported in the literature, but no detailed descriptions of the specimens have been published.
516:
is elongated and one third of its length projects past the rear edge of the head. On each of the triangular shaped mandibles, the inner chewing surface is 80 percent as long as the whole mandible length.
312:
359:
forest had a variety of plants living in a mixed coastal swamp, river, and lake environment. The river and lake system had numerous swampy areas that resulted in active
451:
that are not seen in any of the late Eocene
European amber species, or in any Upper Eocene United States amber species. Workers of two amber species,
666:
391:
730:
495:
has a very elongated head that does not have distinct rear corners, rather the rear margin forms a "collar" shape, features not seen in the
745:
555:
sp. nov. (Hymenoptera, Formicidae) from the
Sakhalin amberโthe earliest described species of an extant genus of Myrmicinae".
110:
735:
128:
453:
436:
339:, in far eastern Russia during a 1972 collecting expedition. The expedition recovered amber from the beaches of the
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463:
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418:
750:
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The amber fossil specimen was first studied by paleoentomologists A. G. Radchenko and E. E. Perkovsky of the
740:
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720:
634:
692:
234:
355:
328:
324:
614:
572:
351:
311:, specimen number "PIN3387-172" which, at the time of the genus description, was residing in the
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and upstream on the banks of the river eroding out of exposures of
Naibuchi Formation strata.
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714:
468:
281:
210:
61:
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595:"Orthoclads from Eocene Amber from Sakhalin (Diptera: Chironomidae, Orthocladiinae)"
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410:, who had died in 2014. Radchenko and Perkovsky suggested in the description that
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in 1978 suggesting dates between 59 and 47 million years old. In 1988,
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66:
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628:
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Sakhalin amber has been attributed a range of geological ages, with
429:
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has a pair of distinctive long spines near the rear of her
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workers being more than 2 mm (0.079 in) longer.
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in the shape of the spines, which widen near the base in
406:
honoring the
Russian paleoentomologist and myrmecologist
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was one of eight ant species known from
Sakhalin fossil.
313:
Paleontological
Institute, Russian Academy of Sciences
551:
Radchenko, A. G.; Perkovsky, E. E. (2016). "The ant
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593:Baranov, V.; Andersen, T.; Perkovsky, E.E. (2014).
307:is known from a single adult female fossil, the
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369:, Nymphaeaceae and Ericaceae plants, while
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20:
387:, and other trees populated the forest.
335:specimen was recovered from deposits on
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398:for the species being published in the
392:National Academy of Sciences of Ukraine
363:formation. The bogs were surrounded by
483:, in the more rounded petiole of the
467:from Late Oligocene to Early Miocene
7:
402:. The species name was coined as a
599:Insect Systematics & Evolution
14:
127:
253:Radchenko & Perkovsky, 2016
319:. The described specimen is a
1:
731:Fossil taxa described in 2016
292:. At the time of description
746:Prehistoric insects of Asia
454:Aphaenogaster amphioceanica
437:Aphaenogaster amphioceanica
767:
327:in a transparent chunk of
300:History and classification
611:10.1163/1876312X-45032122
569:10.1134/S0031030116090136
487:, and overall size, with
464:Aphaenogaster praerelicta
240:
233:
124:Scientific classification
122:
117:
108:
23:
643:Aphaenogaster dlusskyana
553:Aphaenogaster dlusskyana
262:Aphaenogaster dlusskyana
247:Aphaenogaster dlusskyana
25:Aphaenogaster dlusskyana
557:Paleontological Journal
400:Paleontological Journal
441:
427:
323:adult preserved as an
16:Extinct species of ant
693:Paleobiology Database
507:The single worker of
471:have similar spines.
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421:
343:at the mouth of the
280:known from a single
736:Hymenoptera of Asia
475:is separated from
442:
428:
394:, with their 2016
352:Vladimir Zherikhin
226:A. dlusskyana
708:
707:
680:Open Tree of Life
635:Taxon identifiers
276:in the subfamily
258:
257:
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701:
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661:
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623:
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493:A. amphioceanica
396:type description
284:fossil found in
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29:Temporal range:
21:
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751:Fossil ant taxa
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459:Dominican amber
408:Gennady Dlussky
356:Gennady Dlussky
337:Sakhalin island
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741:Sakhalin amber
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726:Eocene insects
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605:(4): 359โ378.
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563:(9): 936โ946.
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489:A. praerelicta
481:A. praerelicta
477:A. praerelicta
329:Sakhalin amber
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721:Aphaenogaster
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509:A. dlusskyana
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497:A. dlusskyana
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485:A. dlusskyana
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473:A. dlusskyana
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469:Mexican Amber
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457:from Miocene
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445:A. dlusskyana
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424:A. dlusskyana
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412:A. dlusskyana
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305:A. dlusskyana
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294:A. dlusskyana
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282:Middle Eocene
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235:Binomial name
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212:Aphaenogaster
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32:Middle Eocene
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22:
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434:Head of the
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422:Head of the
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321:worker caste
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211:
24:
18:
503:Description
345:Naiba River
341:Okhotsk Sea
197:Subfamily:
181:Hymenoptera
715:Categories
521:References
278:Myrmicinae
201:Myrmicinae
191:Formicidae
161:Arthropoda
658:Q28667206
449:propodeum
325:inclusion
219:Species:
147:Kingdom:
141:Eukaryota
118:Holotype
652:Wikidata
619:81975987
577:90471180
499:worker.
440:holotype
426:holotype
404:patronym
372:Taxodium
361:peat bog
309:holotype
290:Sakhalin
187:Family:
157:Phylum:
151:Animalia
137:Domain:
685:7858658
672:9571886
366:Osmunda
270:species
267:extinct
244:†
223:†
207:Genus:
177:Order:
171:Insecta
167:Class:
98:↓
698:349560
617:
575:
331:. The
317:Moscow
265:is an
615:S2CID
573:S2CID
514:scape
384:Salix
378:Alnus
333:amber
315:, in
286:amber
667:GBIF
461:and
37:Pre๊
607:doi
565:doi
381:,
288:on
274:ant
272:of
717::
695::
682::
669::
654::
613:.
603:46
601:.
597:.
585:^
571:.
561:50
559:.
529:^
375:,
87:Pg
621:.
609::
579:.
567::
92:N
82:K
77:J
72:T
67:P
62:C
57:D
52:S
47:O
42:๊
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