Synapsida

?Synapsids Rentang fosil: 320-100Ma. Descendant taxon Mammalia survives to present. PraЄ Є O S D C P T J K Pg N
Dimetrodon grandis skeleton at the National Museum of Natural History of U.S.A.
Klasifikasi ilmiah
Kerajaan: Animalia Filum: Chordata Upafilum: Vertebrata Infrafilum: Gnathostomata Superkelas: Tetrapoda (Tidak termasuk) Amniota Kelas: Synapsida Osborn, 1903
Orders & Suborders
Order Pelycosauria * Suborder Caseasauria Suborder Eupelycosauria * Order Therapsida * Suborder Biarmosuchia Suborder Dinocephalia Suborder Anomodontia Suborder Gorgonopsia Suborder Therocephalia Suborder Cynodontia * For complete phylogeny, see text.
Sinonim
Theropsida

Synapsida ('fused arch'), atau theropsida ('wajah hewan'), kelas hewan yang termasuk mamalia dan segala kerabat dekatnya selain amniota hidup lainnya.^[1] Anggota non-mamalia disebut sebagai reptil mirip mammalia dalam sistematika klasik,^[2][3] tapi disebut "mamalia batang" atau "proto-mammalia" dalam terminologi cladistic.

Taksonomi

Classification

• Series Amniota
  • CLASS SYNAPSIDA *
    • Order Pelycosauria *
      • Suborder Caseasauria
      • Suborder Eupelycosauria *
        • Family Varanopseidae
        • Family Ophiacodontidae
        • Family Edaphosauridae
        • Family Sphenacodontidae *
    • Order Therapsida *
      • Suborder Biarmosuchia *
      • Suborder Dinocephalia
      • Suborder Anomodontia
      • Suborder Gorgonopsia
      • Suborder Therocephalia
      • Suborder Cynodontia *
        • Family Probainognathidae
        • Superfamily Chiniquodontoidea *
  • CLASS MAMMALIA

Filogeni

Synapsida

Caseasauria Eupelycosauria Varanopseidae Ophiacodontidae Edaphosauridae Sphenacodontia Sphenacodontidae Therapsida Biarmosuchia Eotitanosuchus Eutherapsida Dinocephalia Neotherapsida Anomodontia Theriodontia Gorgonopsia Eutheriodontia Therocephalia Cynodontia Dvinia Procynosuchidae Epicynodontia Thrinaxodon Eucynodontia Cynognathus Probainognathia Trithelodontidae Chiniquodontidae Prozostrodon Mammaliaformes Mammalia