Monotremata

Monotremata; Julat zaman: 123–0 Ma PreЄ Є O S D C P T J K Pg N Cretaceous Awal - Kini
	Empat daripada lima spesies monotrem lanjut: platipus (atas kiri), ekidna paruh pendek (atas kanan), ekidna paruh panjang barat (bawah kiri) dan replika ekidna paruh panjang timur (bawah kanan)
Pengelasan saintifik
Domain:	Eukaryota
Alam:	Animalia
Filum:	Chordata
Klad:	Synapsida
Klad:	Mammaliaformes
Kelas:	Mammalia
Subkelas:	Prototheria
Order:	Monotremata; C.L. Bonaparte, 1837
Subkumpulan
	†Kryoryctes?; †Stirtodon; †Sundrius?; †Steropodontidae; Ornithorhynchidae; Tachyglossidae;

Monotremata (monos, tunggal + trema, lubang; menunjuk pada kloaka) ialah order mamalia yang bertelur dan tidak bersalin terus seperti marsupial (Metatheria) dan mamalia berplasenta (Eutharia).

Ciri umum

Seperti mamalia lain, spesies Monotremata berdarah panas dengan kadar metabolik yang tinggi (walaupun tidak setinggi mamalia lain); tubuhnya berambut, menghasilkan susu untuk menyusui anak mereka, memiliki tulang tunggal pada rahang bawahnya; dan memiliki tiga tulang telinga tengah.

Rujukan

^ Bonaparte, C.L. (1837). "A New Systematic Arrangement of Vertebrated Animals". Transactions of the Linnean Society of London. 18 (3): 258. doi:10.1111/j.1095-8339.1838.tb00177.x.
^ Thomas H. Rich; Timothy F. Flannery; Patricia Vickers-Rich (2020). "Evidence for a remarkably large toothed-monotreme from the Early Cretaceous of Lightning Ridge, NSW, Australia". Dalam Guntupalli V.R. Prasad; Rajeev Patnaik (penyunting). Biological consequences of plate tectonics. New perspectives on post-Gondwana break-up–A tribute to Ashok Sahni. Vertebrate Paleobiology and Paleoanthropology. Springer. m/s. 77–81. doi:10.1007/978-3-030-49753-8_4. ISBN 978-3-030-49752-1.
^ Thomas H. Rich; Timothy F. Flannery; Alistair R. Evans; Matt White; Timothy Ziegler; Alanna Maguire; Stephen Poropat; Peter Trusler; Patricia Vickers-Rich (2020). "Multiple hypotheses about two mammalian upper dentitions from the Early Cretaceous of Australia". Alcheringa: An Australasian Journal of Palaeontology. 44 (4): 528–536. doi:10.1080/03115518.2020.1829042. S2CID 230531306.
^ Groves, Colin (16 November 2005). Wilson, D. E., dan Reeder, D. M. (ed.) (penyunting). Mammal Species of the World (ed. ke-3). Percetakan Universiti Johns Hopkins. m/s. p. 1-2. ISBN 0-801-88221-4. |pages= has extra text (bantuan)CS1 maint: multiple names: editors list (link) CS1 maint: extra text: editors list (link)

[1] Bonaparte, C.L. (1837). "A New Systematic Arrangement of Vertebrated Animals". Transactions of the Linnean Society of London. 18 (3): 258. doi:10.1111/j.1095-8339.1838.tb00177.x.

[2] Thomas H. Rich; Timothy F. Flannery; Patricia Vickers-Rich (2020). "Evidence for a remarkably large toothed-monotreme from the Early Cretaceous of Lightning Ridge, NSW, Australia". Dalam Guntupalli V.R. Prasad; Rajeev Patnaik (penyunting). Biological consequences of plate tectonics. New perspectives on post-Gondwana break-up–A tribute to Ashok Sahni. Vertebrate Paleobiology and Paleoanthropology. Springer. m/s. 77–81. doi:10.1007/978-3-030-49753-8_4. ISBN 978-3-030-49752-1.

[3] Thomas H. Rich; Timothy F. Flannery; Alistair R. Evans; Matt White; Timothy Ziegler; Alanna Maguire; Stephen Poropat; Peter Trusler; Patricia Vickers-Rich (2020). "Multiple hypotheses about two mammalian upper dentitions from the Early Cretaceous of Australia". Alcheringa: An Australasian Journal of Palaeontology. 44 (4): 528–536. doi:10.1080/03115518.2020.1829042. S2CID 230531306.

[msw3-4] Groves, Colin (16 November 2005). Wilson, D. E., dan Reeder, D. M. (ed.) (penyunting). Mammal Species of the World (ed. ke-3). Percetakan Universiti Johns Hopkins. m/s. p. 1-2. ISBN 0-801-88221-4. |pages= has extra text (bantuan)CS1 maint: multiple names: editors list (link) CS1 maint: extra text: editors list (link)