Competitive Exams: Must Know Connecting Links and Living Fossils in Biology

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Connecting Links

  • Living + nonliving = virus
  • Protozoa + porifera = Proteospongia
  • Plant + animal = Euglena
  • Protozoa + Metazoa = Xenoturbella + Nemertodema
  • Annelida + Mollusca = Neoplina
  • Protochordata + Vertebra = Ainiktozoan
  • Fish + Land vertebrate = Coelocanthus
  • Amphibia + Reptile = Seymouria
  • Arthropoda + Annelids = Peripatus
  • Bony fish + Amphibia = lung fish
  • Fish + tetrapods = Latemaria
  • Bird + reptile = archaeopteryx.
  • Coerentrate + Platyhelminthes = Ctenoplana
  • Echinoderm + Chordate – Balanoglossus
  • Reptiles + mammals = Duck Billed Platypus, Spring Ant Eater
  • Aquatic + land plants = Fritschiella

Living Fossils

  • Limulus – Arthropoda
  • Neopline – Mollusca – Nautilus
  • Plastasterias – Echinodermata
  • Lamprey – Cyclostomata – Chordate
  • Latimeria – oldest living fish
  • Sphendon – reptilian
  • Echidna – Mammalia
  • Peripatus – Arthropod

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