[{"n": "Barinophytales", "u": "/e/prehistoric-plant-orders/barinophytales/", "s": "Extinct vascular plants of uncertain affinity, possibly related to lycopsids."}, {"n": "Bennettitales", "u": "/e/prehistoric-plant-orders/bennettitales/", "s": "Extinct seed plants with flower-like cones, common in the Mesozoic."}, {"n": "Calamopityales", "u": "/e/prehistoric-plant-orders/calamopityales/", "s": "Extinct order of early seed plants with monoxylic wood."}, {"n": "Corystospermales", "u": "/e/prehistoric-plant-orders/corystospermales/", "s": "Extinct seed ferns dominant in Gondwana during the Triassic."}, {"n": "Czekanowskiales", "u": "/e/prehistoric-plant-orders/czekanowskiales/", "s": "Extinct seed plants with dissected leaves and bivalved seed capsules."}, {"n": "Drepanophycales", "u": "/e/prehistoric-plant-orders/drepanophycales/", "s": "Extinct lycophyte order from the Silurian to Devonian periods."}, {"n": "Gosslingiales", "u": "/e/prehistoric-plant-orders/gosslingiales/", "s": "Paraphyletic order of early vascular plants without terminal sporangia."}, {"n": "Lepidodendrales", "u": "/e/prehistoric-plant-orders/lepidodendrales/", "s": "Extinct scale trees that dominated Carboniferous coal swamps."}, {"n": "Lyginopteridales", "u": "/e/prehistoric-plant-orders/lyginopteridales/", "s": "Earliest seed ferns, first described as pteridosperms."}, {"n": "Pentoxylales", "u": "/e/prehistoric-plant-orders/pentoxylales/", "s": "An extinct seed plant order from Jurassic–Cretaceous East Gondwana."}, {"n": "Petriellaceae", "u": "/e/prehistoric-plant-orders/petriellaceae/", "s": "Extinct gymnosperm family from Triassic Gondwana."}, {"n": "Rhacophytales", "u": "/e/prehistoric-plant-orders/rhacophytales/", "s": "Extinct Devonian plants with unique branching and unresolved taxonomic position."}, {"n": "Sawdoniales", "u": "/e/prehistoric-plant-orders/sawdoniales/", "s": "An order of extinct zosterophylls with lateral, reniform sporangia."}, {"n": "Sphenophyllales", "u": "/e/prehistoric-plant-orders/sphenophyllales/", "s": "Extinct articulate plants, sister to horsetails, common in Carboniferous forests."}, {"n": "Zosterophyllales", "u": "/e/prehistoric-plant-orders/zosterophyllales/", "s": "Extinct early vascular plants, sister to lycophytes."}]