Qaisracetus

Qaisracetus
Temporal range: Middle Eocene, 48.6–40.4 Ma
Drawing of basic outline of Qaisracetus.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Infraorder: Cetacea
Family: †Protocetidae
Subfamily: †Protocetinae
Genus: †Qaisracetus
Gingerich et al. 2001
Species

Qaisracetus is an extinct protocetid early whale known from the Eocene (Lutetian, 48.6 to 40.4 million years ago) of Baluchistan, Pakistan (31°00′N 70°12′E / 31.0°N 70.2°E / 31.0; 70.2, paleocoordinates 12°24′N 65°42′E / 12.4°N 65.7°E / 12.4; 65.7).[1][2]

Etymology

The genus is named after the Qaisrani Baloch tribe which assisted Gingerich and his team during their field work.[3] "Qaisra" is also etymologically close to the royal title used in Persian and many Indo-European languages (e.g. Kaiser, Czar, Caesar).[3] The species is named for Muhammad Arif, former paleontologist at the Geological Survey of Pakistan who contributed significantly to archaeocete paleontology in Pakistan.[4]

Description

Qaisracetus is known from a dozen specimens, all found in or near the type locality. Among them are several well-preserved elements, including a well-preserved skull, partial skulls and braincases, several vertebrae including an almost complete sacrum, a left innominate, ribs, and partial limb elements.[5]

Qaisracetus is smaller than Pappocetus and Babiacetus but larger than Indocetus.[6] Qaisracetus arifi is almost as complete as Rodhocetus kasranii, the most complete articulated skeleton of a protocetid, and they were similar in size: the latter had an estimated body weight of 620 kg (1,370 lb), compared to 590 kg (1,300 lb) for the former.[7]

Qaisracetus has a generalized protocetid skull with the external nares located relatively anteriorly (above C1) and a relatively broad frontal shield. The rostrum is more narrow in Qaisracetus than in Takracetus.[6]

The four sacral vertebrae are only partially fused: the first two are solidly fused, the third is locked in place by rib-like processes (a pleurapophyseal synchondrosis), while the fourth has a caudal (tail-like) morphology including two ventral chevron processes. The fusion between S1 and S2 distinguished Qaisracetus from other protocetids such as Protocetus, Rodhocetus, Gaviacetus, Natchitochia, and Georgiacetus. Qaisracetus' vertebrae are not dense and thick like in Eocetus.[8] In contrast to Qaisracetus, Rodhocetus has a sacrum where non of the vertebrae have fused centra, which is derived to be a protocetid, but Rodhocetus is primitive in retaining pleurapophyseal connections between all sacral vertebrae. The sacral morphology of Rodhocetus and Qaisracetus indicate protocetids represent a wide range of specializations, although which is ancestral to later whales is unclear.[7]

Notes and references

  1. ^ Qaisracetus in the Paleobiology Database. Retrieved July 2013.
  2. ^ Ander Dabh Shumali (Eocene of Pakistan) in the Paleobiology Database. Retrieved July 2013.
  3. ^ a b Gingerich et al. 2001, Etymology, p. 296
  4. ^ Gingerich et al. 2001, Etymology, p. 298
  5. ^ Gingerich et al. 2001, Hypodigm, p. 297
  6. ^ a b Gingerich et al. 2001, Diagnosis, p. 296
  7. ^ a b Gingerich et al. 2001, Discussion, pp. 307–8
  8. ^ Gingerich et al. 2001, Diagnosis, p. 296, 303, Fig. 23

Bibliography

Wikispecies has information related to Qaisracetus.
  • Gingerich, Philip D; Haq, U; Khan, H; Zalmout, S (2001). "Eocene stratigraphy and archaeocete whales (Mammalia, Cetacea) of Drug Lahar in the eastern Sulaiman range, Balochistan (Pakistan)". Contributions from the Museum of Paleontology, University of Michigan. 30 (11): 269–319. hdl:2027.42/48661. OCLC 50061585.

Read other articles:

TVR T350

TVR T350Descrizione generaleCostruttore  TVR Tipo principaleCoupé Produzionedal 2002 al 2006 Sostituisce laTVR Tamora Sostituita daTVR Sagaris Altre caratteristicheDimensioni e massaMassa1000 kg AltroAssemblaggioBlackpool Altre antenateTVR Tuscan Speed Six Auto similiMorgan Aero 8Porsche Boxster La TVR T350 è un'autovettura sportiva prodotta dalla casa automobilistica inglese TVR tra il 2002 e il 2006. Era disponibile in versione T350C (con il tetto rigido) e T350T (targa). I...

 

 

Xª Flottiglia MAS (Regno d'Italia)

10ª Flottiglia MASTeseo Tesei, sviluppatore del siluro a lenta corsa Descrizione generaleAttiva23 aprile 1939 - 8 settembre 1943 Nazione Italia RuoloAttacco al naviglio nemico in rada tramite sabotaggio e in mare aperto con l'uso di naviglio sottile silurante o esplodente EquipaggiamentoNaviglio sottile; mezzi d'assalto subacquei e di superficie trasportabili da sommergibili modificati MottoMemento audere semper per la 1ª Flottiglia MASPer il Re e per la bandiera per la Xª Flottiglia ...

 

 

Harlan Community Academy High School

High School in Chicago, Illinois, United States Harlan Community Academy High SchoolAddress9652 South Michigan AvenueChicago, Illinois 60628United StatesCoordinates41°43′07″N 87°37′17″W / 41.7185°N 87.6213°W / 41.7185; -87.6213InformationSchool typePublicSecondaryOpened1958School districtChicago Public SchoolsPrincipalKai L. Jones[1]Grades9–12GenderCoedEnrollment273 (2022–2023)[1]Campus typeUrbanColor(s)  Blue  White[2]...

Camion radiocommandé

Cet article est une ébauche concernant le modélisme, le maquettisme et les modèles réduits. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Un camion radiocommandé en 1:16. Les camions radiocommandés (camions RC) sont des modèles réduits de véritables camions pilotés à distance via une radiocommande. Initialement, le modélisme camion consistait essentiellement à reproduire le plus précisément poss...

 

 

Manchester City Football Club 1996-1997

Questa voce sull'argomento stagioni delle società calcistiche inglesi è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Voce principale: Manchester City Football Club. Manchester City F.C.Stagione 1996-1997Sport calcio Squadra Manchester City Allenatore James Alan Ball (esonerato) Steve Coppell (dimesso) Phil Neal (traghettatore) Frank Clark Presidente Francis Lee First Division14º FA CupQuinto turno Worthington CupSecondo turno Miglior marcatore...

 

 

Pro Patria et Libertate Sezione Calcio 1974-1975

Voce principale: Aurora Pro Patria 1919. Pro Patria et Libertate Sezione CalcioStagione 1974-1975Sport calcio Squadra Pro Patria Allenatore Adelio Crespi Presidente Peppino Mancini Serie D1° (promosso in Serie C) Maggiori presenzeCampionato: Mela e Brusadelli (34 partite) Miglior marcatoreCampionato: Fornara (11) 1971-1972 1975-1976 Si invita a seguire il modello di voce Questa pagina raccoglie le informazioni riguardanti la Pro Patria et Libertate nelle competizioni ufficiali della st...

B

  此條目介紹的是拉丁字母中的第2个字母。关于其他用法，请见「B (消歧义)」。   提示：此条目页的主题不是希腊字母Β、西里尔字母В、Б、Ъ、Ь或德语字母ẞ、ß。 BB b(见下)用法書寫系統拉丁字母英文字母ISO基本拉丁字母（英语：ISO basic Latin alphabet）类型全音素文字相关所属語言拉丁语读音方法 [b][p][ɓ](适应变体)Unicode编码U+0042, U+0062字母顺位2数值 2歷史發...

 

 

Lucknow Pact

1916 Indian Hindu-Muslim agreement This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Lucknow Pact – news · newspapers · books · scholar · JSTOR (December 2018) (Learn how and when to remove this template message) The Lucknow Pact was an agreement reached between the Indian National Congress and the Muslim Leag...

 

 

Luminance

Photometric measure Not to be confused with Luma (video), Luminescence, or Illuminance. For other uses, see Luminance (disambiguation). This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Luminance – news · newspapers · books · scholar · JSTOR (April 2023) (Learn how and when to remove this message) A tea light-...

Louis-Philippe d'Orléans (1747-1793)

Pour les articles homonymes, voir Louis-Philippe, prince d’Orléans. Louis-Philippe d’Orléans Le duc d’Orléans par Antoine-François Callet. Fonctions Duc d'Orléans Biographie Dynastie Maison d’Orléans Nom de naissance Louis-Philippe Joseph d’Orléans Surnom « Philippe Égalité » Date de naissance 13 avril 1747 Lieu de naissance Saint-Cloud (France) Date de décès 6 novembre 1793 (à 46 ans) Lieu de décès Paris (France) Sépulture Cimetière de la Madeleine...

 

 

Prva slovenska nogometna liga 2011-2012

1. SNL 2011-2012Prva slovenska nogometna liga 2011./12. Competizione Campionato sloveno Sport Calcio Edizione 21ª Organizzatore NZS Date dal 16 luglio 2011al 20 maggio 2012 Luogo  Slovenia Partecipanti 10 Risultati Vincitore Maribor(10º titolo) Retrocessioni Nafta Statistiche Miglior giocatore Dare Vršič[1] Miglior marcatore Dare Vršič (22 reti) Incontri disputati 180 Gol segnati 491 (2,73 per incontro) Pubblico 246 290 (1 368 per incontro)...

 

 

Mansehra

For the district, see Mansehra District. For other uses, see Mansehra (disambiguation). City in Khyber Pakhtunkhwa, PakistanMansehra مانسهرهمانسہرہCityMansehra after winter snowfallCoordinates: 34°20′2″N 73°12′5″E / 34.33389°N 73.20139°E / 34.33389; 73.20139Country PakistanProvince Khyber PakhtunkhwaDistrictMansehraTehsilMansehraRegionUpper PakhliArea[1] • Total1,340 km2 (520 sq mi)Elevation1,088...

42nd Royal Tank Regiment

42nd Royal Tank RegimentCap badge of the Royal Tank RegimentActiveNovember 1938 – October 1956Country United KingdomBranch British ArmyTypeArmouredSizeOne regimentPart ofRoyal Armoured CorpsMotto(s)Fear NaughtMarchQuick: My Boy Willie (all RTR regiments)Slow: The Royal Tank Regiment Slow MarchMilitary unit Troops of the King's Shropshire Light Infantry shelter behind a Matilda II tank of 42 RTR during manoeuvres at Knowsley Park, Prescot, 30 July 1940 The 42nd Royal Tank Regi...

 

 

Zumarraga, Samar

Peta menunjukkan lokasi Zumarraga Zumarraga adalah munisipalitas yang terletak di provinsi Samar, Filipina. Pada tahun 2010, munisipalitas ini memiliki populasi sebesar 18.064 jiwa dan 3.025 rumah tangga. Pembagian wilayah Secara administratif Zumarraga terbagi menjadi 25 barangay, yaitu: Alegria Arado Arteche Bioso Boblaran Botaera Buntay Camayse Canwarak Ibarra Lumalantang Macalunod Maga-an Maputi Monbon Mualbual Pangdan Poro San Isidro Sugod Tinaugan Tubigan Poblacion 1 (Barangay 1) Poblac...

 

 

أبو يعلى الحنبلي

  ميّز عن ابن أبي يعلى. محمد بن الحسين معلومات شخصية الميلاد أبريل 990بغداد الوفاة أغسطس 15, 1066بغداد  مواطنة الدولة العباسية  الديانة الإسلام الأولاد ابن أبي يعلى الحياة العملية المهنة قاضٍ أعمال بارزة إبطال التأويلات لأخبار الصفات  [لغات أخرى]‏،  والأحكا...

Affitin

Wild-type Sac7d (blue and orange) kinking DNA (lilac), from PDB: 1AZP​ Affitins[1][2] (commercial name Nanofitins) are artificial proteins with the ability to selectively bind antigens. They are structurally derived from the DNA binding protein Sac7d, found in Sulfolobus acidocaldarius, a microorganism belonging to the archaeal domain. By randomizing the amino acids on the binding surface of Sac7d and subjecting the resulting protein library to rounds of ribosome display...

 

 

Wind resource assessment

Wind resource assessment is the process by which wind power developers estimate the future energy production of a wind farm. Accurate wind resource assessments are crucial to the successful development of wind farms. History Modern wind resource assessments have been conducted since the first wind farms were developed in the late 1970s. The methods used were pioneered by developers and researchers in Denmark, where the modern wind power industry first developed. Wind resource maps Wind resour...

 

 

Operation Compass

British military offensive against Italy in Egypt and Libya during WWII Operation CompassPart of the Western Desert Campaign of the Second World WarMap showing the Western Desert theatreDate9 December 1940 – 9 February 1941(2 months)LocationSidi Barrani, Egypt to El Agheila, LibyaResult British victoryTerritorialchanges Recapture of western Egypt and occupation of CyrenaicaBelligerents  British Empire  India Libyan Arab Force[1][a]  Southern Rhodesia ...

Energia eolica

Questa voce o sezione sull'argomento energia è ritenuta da controllare. Motivo: La voce affronta l'argomento energia eolica in un'ottica consumistica, soffermandosi sulla generazione di energia elettrica dall'energia eolica, come se l'energia eolica fosse solo questo. Bisogna spostare i contenuti in voci più specifiche, come Turbina eolica o creare nuove voci, lasciando qui una descrizione generale dell'energia eolica, con tutte le sue possibili applicazioni o risvolti non necessariam...

 

 

Surat Untukmu

Surat UntukmuPoster filmSutradaraHarris NizamProduserSariono SutrisnoHarris NizamDitulis olehHarris NizamPemeranPrilly LatuconsinaArbani YasizGritte AgathaSheila Dara AishaFandy ChristianAnrez Putra AdelioTio PakusadewoIke MutiMuhammad Ilham FauziCindy NirmalaPenata musikThoersi ArgeswaraSinematograferBudi UtomoPenyuntingYoga KrispratamaDistributorAlleta PicturesTanggal rilis25 agustus 2016Durasi97 menitNegara IndonesiaBahasaBahasa Indonesia Surat Untukmu adalah film drama petualangan I...