Saturday, 5 January 2019

Tarimspira artemi: A new species of Paraconodont from the Early Cambrian of northern Greenland.

Conodonts are curious microfossils found in rocks from the Cambrian to the Triassic in many parts of the world. They are tooth-like structures, comprising a number of distinct elements made from the same material as the teeth of Vertebrates, but distinct from the teeth of any known Vertebrate, with each Conodont apparently having a unique set of these structures. For many years the animals that produced these fossils were a mystery, but they are now known to have been Eel-like organisms, considered to be Chordates closely related to, but outside the Vertebrate group. However, this reconstruction is based upon the largest Conodont group, the Euconodonts, with two other groups having been tentatively assigned to the greater Conodonta, the Protoconodonts, which are now considered to be related to the Chaetognaths (Arrow Worms), and the Paraconodonts, a group which known only from simple elements made from the same material as Conodont elements and Vertebrate teeth. The Paraconodonts are known from the Early Cambrian to the Early Devonian, and though know soft tissue is known from this group, they are considered to very closely related to the Euconodonts, or even the group from which the Euconodonts sprang.

In a paper published in the Journal of Paleontology on 31 October 2018, John Peel of the Department of Earth Sciences at Uppsala University, describes a new species of Paraconodont from the Early Cambrian Henson Gletscher Formation of southern Freuchen Land and Peary Land, in northern Greenland, deposits that form part of the Small Shelly Fauna at the beginning of the Cambrian (the Small Shelly Fauna marks the beginning of the Cambrian in deposits around the world; in these beds numerous small shells and shell-elements are found, but not larger mineralised shells).

The new species is placed in the genus Tarimspira, which has previously been described from Xinjiang and Zhejiang provinces in China, and given the specific name artemi, in honour of Artem Kouchinsky of the Swedish Museum of Natural History, for his work on Early Cambrian faunas. The species is described from a series of specimens, which have an open, coiled shape, lacking a spiral keel around the periphery.

Tarimspira artemi, Henson Gletscher Formation, Cambrian Series 2, Stage 4; GGU sample 301354, southern Freuchen Land, North Greenland, unless stated. Morphotype B2 unless stated. (1) PMU 31853; (2), (3) PMU 31854; (4), (6), (7) PMU 31855, with arrow in (7) indicating the last deposited growth lamella extending from the base onto the lateral areas; (5) PMU 31856; (8) PMU 31858 from GGU sample 271748 Løndal, Peary Land, morphotype B; (9) PMU 31857; (10) PMU 31859 from GGU sample 218584, Henson Gletscher Formation, Henson Gletscher, southwest Peary Land, morphotype E. Scale bars are 50 μm. Peel (2018).

See also...

https://sciencythoughts.blogspot.com/2016/12/ontogeny-in-siphonodellid-conodonts.htmlhttps://sciencythoughts.blogspot.com/2015/09/rhegmaspis-xiphoidea-streamlined.html
http://sciencythoughts.blogspot.com/2014/11/a-new-species-of-vetulicolian-from.htmlhttp://sciencythoughts.blogspot.com/2012/10/are-vetulicolians-deuterostomes.html
Follow Sciency Thoughts on Facebook.

6 comments:

  1. ASS..WR.WB.SAYA PAK RESKY TKI BRUNAY DARUSALAM INGIN BERTERIMA KASIH BANYAK KEPADA EYANG WORO MANGGOLO,YANG SUDAH MEMBANTU ORANG TUA SAYA KARNA SELAMA INI ORANG TUA SAYA SEDANG TERLILIT HUTANG YANG BANYAK,BERKAT BANTUAN EYANG SEKARAN ORANG TUA SAYA SUDAH BISA MELUNASI SEMUA HUTAN2NYA,DAN SAWAH YANG DULUNYA SEMPAT DI GADAIKAN SEKARAN ALHAMDULILLAH SUDAH BISA DI TEBUS KEMBALI,ITU SEMUA ATAS BANTUAN EYANG WORO MANGGOLO MEMBERIKAN ANGKA RITUALNYA KEPADA KAMI DAN TIDAK DI SANGKA SANGKA TERNYATA BERHASIL,BAGI ANDA YANG INGIN DIBANTU SAMA SEPERTI KAMI SILAHKAN HUBUNGI NO HP EYANG WORO MANGGOLO (0823-9177-2208) JANGAN ANDA RAGU ANGKA RITUAL EYANG WORO MANGGOLO SELALU TEPAT DAN TERBUKTI INI BUKAN REKAYASA SAYA SUDAH MEMBUKTIKAN NYA TERIMAH KASIH
    NO HP EYANG WORO MANGGOLO (0823-9177-2208)
    BUTUH ANGKA GHOIB HASIL RTUAL EYANG WORO MANGGOLO
    DIJAMIN TIDAK MENGECEWAKAN ANDA APAPUN ANDA MINTA INSYA ALLAH PASTI DIKABULKAN BERGAUNLAH SECEPATNYA BERSAMA KAMI JANGAN SAMPAI ANDA MENYESAL

    angka;GHOIB: singapura
    angka;GHOIB: hongkong
    angka;GHOIB; malaysia
    angka;GHOIB; toto magnum
    angka”GHOIB; laos…
    angka”GHOIB; macau
    angka”GHOIB; sidney
    angka”GHOIB: vietnam
    angka”GHOIB: korea
    angka”GHOIB: brunei
    angka”GHOIB: china
    angka”GHOIB: thailand

    ReplyDelete
  2. Halo,
    Ini untuk memberi tahu masyarakat bahwa Nyonya Charity White, pemberi pinjaman swasta memiliki kesempatan finansial untuk semua orang yang membutuhkan bantuan keuangan, membayar tagihan, untuk berinvestasi dalam bisnis baru atau untuk meningkatkan bisnis Anda. Kami memberikan pinjaman dengan bunga sebesar 2% kepada perusahaan dan perorangan. Ini tidak memerlukan banyak dokumen, juga syarat dan ketentuan yang jelas dan peka. Hubungi kami via e-mail: (charitywhitefinancialfirm@gmail.com) Kami akan memberikan layanan terbaik kami.

    ReplyDelete
  3. Kami menawarkan berbagai layanan keuangan yang meliputi: Perencanaan Bisnis, Komersial dan Pengembangan Keuangan, Properti dan Hipotek, Pinjaman Konsolidasi Utang, Pinjaman Bisnis, Pinjaman Swasta, Pinjaman Pembiayaan Kembali Rumah dengan suku bunga rendah per tahun untuk perorangan, perusahaan dan badan hukum. Dapatkan yang terbaik untuk keluarga Anda dan miliki rumah impian Anda juga dengan skema Pinjaman Umum kami. Pelamar yang tertarik harus Hubungi kami melalui BBM INVITE: {D8980E0B}
    Hanya WhatsApp: (+ 44) 7480 729811
    Tel .... (+ 44) 7480 729811
    Email: (iskandalestari.kreditpersatuan@gmail.com)

    ReplyDelete
  4. kesaksian nyata dan kabar baik !!!

    Nama saya mohammad, saya baru saja menerima pinjaman saya dan telah dipindahkan ke rekening bank saya, beberapa hari yang lalu saya melamar ke Perusahaan Pinjaman Dangote melalui Lady Jane (Ladyjanealice@gmail.com), saya bertanya kepada Lady jane tentang persyaratan Dangote Loan Perusahaan dan wanita jane mengatakan kepada saya bahwa jika saya memiliki semua persyarataan bahwa pinjaman saya akan ditransfer kepada saya tanpa penundaan

    Dan percayalah sekarang karena pinjaman rp11milyar saya dengan tingkat bunga 2% untuk bisnis Tambang Batubara saya baru saja disetujui dan dipindahkan ke akun saya, ini adalah mimpi yang akan datang, saya berjanji kepada Lady jane bahwa saya akan mengatakan kepada dunia apakah ini benar? dan saya akan memberitahu dunia sekarang karena ini benar

    Anda tidak perlu membayar biayaa pendaftaran, biaya lisensi, mematuhi Perusahaan Pinjaman Dangote dan Anda akan mendapatkan pinjaman Anda

    untuk lebih jelasnya hubungi saya via email: mahammadismali234@gmail.com
    dan hubungi Dangote Loan Company untuk pinjaman Anda sekarang melalui email Dangotegrouploandepartment@gmail.com

    ReplyDelete

  5. Do you need a personal or business loan urgent that can be process within 2 to 3 working days? Have you been frustrated so many times by your banks and other loan firm and you don't know what to do? Here comes the Good news Authony Financial Business and Home Loan is here to offer you any kind of loan you need at an affordable interest rate of 3% If you are interested let us know contact us at ; inforamzanloan@gmail.com

    We Offers Financial Consulting To Client, Companies Seeking Debt / Loan Financing And Seeking For Working Capital To Start A New Business Or To Expand Existing Business. Interested Parties Should Contact Us For More Information Through Via E-mail: inforamzanloan@gmail.com

    Do You Need A Loan To Consolidate Your Debt At 1.0%? Or A Personal Loans * Business Loans etc. Interested Parties Should Contact Us For More Information Through Via E-mail: inforamzanloan@gmail.com

    We Have Loan Programs Tailored For Any Profile And You've Come To The Right Place To Satisfy Your Business Needs. If Your Company Or You Know Of Any Company With Viable Projects / Proposals That Needs Financing, Kindly Write Us With The Loan Requirement. Please, Contact Us For More Information: inforamzanloan@gmail.com

    Do You Need A Loan To Consolidate Your Debt At 1.0%? Or A Personal Loans * Business Loans etc. Interested Parties Should Contact Us For More Information Through Via E-mail: inforamzanloan@gmail.com

    We Offers Financial Consulting To Client, Companies Seeking Debt / Loan Financing And Seeking For Working Capital To Start A New Business Or To Expand Existing Business. Interested Parties Should Contact Us For More Information Through Via E-mail: inforamzanloan@gmail.com

    Kindly write us back with the loan information;
    - Complete Name:
    - Loan amount needed:
    - Loan Duration:
    - Purpose of loan:
    - City / Country:
    - Telephone:
    - How Did You Hear About Us:

    Do You Need A Loan To Consolidate Your Debt At 1.0%? Or A Personal Loans * Business Loans etc. Interested Parties Should Contact Us For More Information Through Via E-mail: inforamzanloan@gmail.com

    We Offers Financial Consulting To Client, Companies Seeking Debt / Loan Financing And Seeking For Working Capital To Start A New Business Or To Expand Existing Business. Interested Parties Should Contact Us For More Information Through Via E-mail: inforamzanloan@gmail.com

    ReplyDelete
  6. Selamat siang pak / nyonya

    Kami menyambut Anda ke PERUSAHAAN PINJAMAN ELIZEBETH ISAAC, di mana kami memberikan pinjaman asli dan serius seperti:



    LAYANAN PINJAMAN TERSEDIA TERMASUK:
    ================================
    * Pinjaman Komersial.
    * Pinjaman pribadi.
    * Pinjaman Bisnis.
    * Pinjaman Investasi.
    * Pinjaman Pembangunan.
    * Pinjaman Akuisisi.
    * Pinjaman konstruksi.
    * Pinjaman Kartu Kredit
    * Pinjaman Konsolidasi Utang
    * Pinjaman bisnis dan lainnya:

    Kami memberikan pinjaman bunga 2% tanpa agunan, sehingga kami dapat mengatakan bahwa kami memberikan PINJAMAN TANPA Agunan, Anda tidak perlu merasa buruk atau kecewa dengan bank yang meminta agunan, cukup hubungi kami dengan mengirim email kepada kami di:

    elizebethisaac@gmail.com

    Terima kasih

    kami menunggu untuk mendengar dari Anda segera

    ReplyDelete