An Eocene orthocone from Antarctica shows convergent evolution of internally shelled cephalopods ... : يُظهر مخروط انتصابي إيوسيني من القارة القطبية الجنوبية تطورًا متقاربًا لرأسيات الأرجل المقذوفة داخليًا ...

• Main Authors: Larisa A. Doguzhaeva, Stefan Bengtson, Marcelo Reguero, Thomas Mörs
• Format: Text
• Language: English
• Published: OpenAlex 2017
• Subjects: Cephalopod Biology and Behavior; Ecology, Evolution, Behavior and Systematics; Agricultural and Biological Sciences; Life Sciences; Application of Stable Isotopes in Trophic Ecology; Ecology; FOS Biological sciences; Environmental Science; Physical Sciences; Marine Biodiversity and Ecosystem Functioning; Oceanography; FOS Earth and related environmental sciences; Earth and Planetary Sciences; Cephalopods; Cephalopod; Paleontology; Biology; Subclass; Mollusca; Geology; Lineage genetic; Carboniferous; Zoology; Biochemistry; Structural basin; Antibody; Immunology; FOS Clinical medicine; Gene; Antarctic; The Antarctic; Antarctic Peninsula; Seymour; Seymour Island; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.60692/ffqxb-3aj49; https://gresis.osc.int//doi/10.60692/ffqxb-3aj49

Background The Subclass Coleoidea (Class Cephalopoda) accommodates the diverse present-day internally shelled cephalopod mollusks (Spirula, Sepia and octopuses, squids, Vampyroteuthis) and also extinct internally shelled cephalopods. Recent Spirula represents a unique coleoid retaining shell structu...