Order Rodentia

This is a large order and some have further divided it into suborders or superfamilies. Below is an alphabetic list of the families  Family Abrocomidae (chinchilla rats) C2 — 10 living spp Family Anomaluridae (scaly-tailed squirrels) A —  7 living spp Family Aplodontiidae (mountain beaver) E —  1 living spp Family Bathyergidae (blesmoles and mole … Continue reading "Order Rodentia"

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Phylum Chordata

These are animals which at some stage in their life-cycle having had a notochord or spinal column, gill-slits, and post-anal tail. It includes humans and other vertebrates.  There are 14 classes, often in three subphyla: Subphylum Cephalochordata1 — Lancelets Class Leptocardii — Lancelets Subphylum Tunicata1 — Tunicates Class Appendicularia — Pelagic Tunicates Class Ascidiacea — Sea … Continue reading "Phylum Chordata"

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Kingdom Animalia

The animal kingdom used to be further separated into vertebrates and invertebrates, with the vertebrates only containing one phylum with five classes containing birds, frogs & lizards, reptiles, mammals and fish. However, things are no longer so clear cut. ITIS, for example, separates Animalia into 2 subkingdoms, with further infrakingdoms and superphyla. However, most lists … Continue reading "Kingdom Animalia"

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Order Artiodactyla

Kingdom: Animalia > Phylum: Chordata > Class: Mammalia > Order: Artiodactyla These are the even-toed ungulates, cloven-hooved mammals. The weight of the animal is carried by its 3rd and 4th toes.  Artiodactyla are sometimes put in a superorder Cetartiodactyla together with the order Cetacea (whales & dolphins) as evidence suggests the cetaceans evolved from artiodactyl … Continue reading "Order Artiodactyla"

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