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

  • 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