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A+医学百科 >> 门 (生物)
生物分类学
分类单元
域 | 界 | 门 | 纲
目 | 科 | 属 | 种
二名法
三域系统
非细胞生物
病毒
细胞生物
古菌域
细菌域
真核域
真菌界
原生生物界
植物界
动物界
门（英文：动物界的门为Phylum，植物界的门为Division[1]）是生物分类法中的一级，位于界和纲之间，有时在门下也分亚门。目前动物界拥有35个门，植物界则拥有12个门，许多门种类繁多，例如蜕皮动物与有胚植物。
目录
1 动物门
2 植物门
3 参考资料
4 外部连结
5 参考来源
动物门
门
涵义
名称
分类特征
种类
棘头动物门
Thorny headed worms
Thorny-headed worms
Reversible spiny proboscis
7002756000000000000approx. 756
无腔动物门
Without gut
Acoels
No mouth or alimentary canal (alimentary canal = digestive tract in digestive system)
环节动物门
Little ring
Segmented worms
生物体柔软，分节
700417000000000000017,000+ extant
节肢动物门
Jointed foot
Arthropods
甲壳素外骨骼
70061134000000000001,134,000+
腕足动物门
Arm foot
Lamp shells
Lophophore，有肉茎
7002300000000000000300-500 extant
外肛动物门
Moss animals
Moss animals, sea mats
Lophophore，没有肉茎，ciliated tentacles
70035000000000000005,000 extant
毛颚动物门
Longhair jaw
Arrow worms
在头和鳍的两边均有几丁质组成的尖刺
7002100000000000000approx. 100 extant
脊索动物门
Cord
Chordates
Hollow dorsal nerve cord, 脊索, pharyngeal slits, endostyle, 肛门
7005100000000000000approx. 100,000+
刺胞动物门
Stinging nettle
Coelenterates
Nematocysts (stinging cells)
7004110000000000000approx. 11,000
栉水母动物门
Comb bearer
Comb jellies
Eight "comb rows" of fused cilia
7002100000000000000approx. 100 extant
环口动物门
Wheel carrying
Symbion
Circular mouth surrounded by small cilia
70003000000000000003+
棘皮动物门
Spiny skin
Echinoderms
Fivefold radial symmetry in living forms, mesodermal calcified spines
7003700000000000000approx. 7,000 extant; approx. 13,000 extinct
内肛动物门
Inside anus
Goblet worm
Anus inside ring of cilia
7002150000000000000approx. 150
腹毛动物门
Hair stomach
Meiofauna
Two terminal adhesive tubes
7002690000000000000approx. 690
颚胃动物门
Jaw orifice
Jaw worms
7002100000000000000approx. 100
半索动物门
Half cord
Acorn worms, pterobranchs
Stomochord in collar, pharyngeal slits
7002100000000000000approx. 100 extant
动吻动物门
Motion snout
Mud dragons
Eleven segments, each with a dorsal plate
7002150000000000000approx. 150
铠甲动物门
Corset bearer
Brush heads
Umbrella-like scales at each end
7002122000000000000approx. 122
微颚动物门
Tiny jaw animals
—
Accordion like extensible thorax
70001000000000000001
软件动物门
Soft
Mollusks / molluscs
Muscular foot and mantle round shell
7005112000000000000112,000[2]
线虫动物门
Thread like
Round worms
Round cross section, keratin cuticle
700480000000000000080,000–1,000,000
线形动物门
Thread form
Horsehair worms
7002320000000000000approx. 320
纽形动物门
A sea nymph
Ribbon worms
7003120000000000000approx. 1,200
有爪动物门
Claw bearer
Velvet worms
Legs tipped by chitinous claws
7002200000000000000approx. 200 extant
直泳虫门
Straight swim
Single layer of ciliated cells surrounding a mass of sex cells
7001200000000000000approx. 20
帚虫动物门
Zeus's mistress
Horseshoe worms
U-shaped gut
700120000000000000020
扁盘动物门
Plate animals
70001000000000000001
扁形动物门
Flat worms
Flat worms
7004250000000000000approx. 25,000[3]
多孔动物门*
Pore bearer
Sponges
Perforated interior wall
70035000000000000005,000+ extant
鳃曳动物门
Little Priapus
700116000000000000016
菱形虫门
Lozenge animal
—
Single axial cell surrounded by ciliated cells
700175000000000000075
轮形动物门
Wheel bearer
Rotifers
Anterior crown of cilia
7003200000000000000approx. 2,000
星虫动物门
Small tube
Peanut worms
Mouth surrounded by invertible tentacles
7002144000000000000144–320
缓步动物门
Slow step
Water bears
Four segmented body and head
70031000000000000001,000+
异涡动物门
Strange flatworm
—
Ciliated deuterostome
70002000000000000002
Total: 35
2,000,000-
原口动物
两侧对称动物
后口动物
存有争议
其他
植物门
门
涵义
名称
特征
角苔门
Flower-horn plants
Hornworts
喇叭状的孢子体，无维管束系统
苔藓植物门
苔藓植物
Mosses
长寿的不分枝孢子体，无维管束系统
地钱门
Marchantia plants
Liverworts
短暂的不分枝孢子体，无维管束系统
石松门
Wolf foot plants
Clubmosses & Spikemosses
小型叶，具维管束系统
蕨类植物门
蕨类植物
Ferns & Horsetails
Prothallus gametophytes, 具维管束系统
种子蕨门
有种子的蕨
Seed ferns
只从化石得知，多从泥盆纪，有争议[4]
松柏门
Sap/pitch plants
Conifers
Cones containing seeds and wood composed of tracheids
苏铁门
Cycads
Seeds, crown of compound leaves
银杏门
银杏
Ginkgo, Maidenhair
Seeds not protected by fruit (single species)
买麻藤门
Gnetophytes
Seeds and woody vascular system with vessels
被子植物门
开花植物
Flowering plants
Flowers and fruit, vascular system with vessels
参考资料
↑ Life sciences. The American Heritage New Dictionary of Cultural Literacy. third. Houghton Mifflin Company. 2005 [2008-10-04]. "Phyla in the plant kingdom are frequently called divisions."
↑ Feldkamp, S. (2002) Modern Biology. Holt, Rinehart, and Winston, USA. (pp. 725)
↑ Species Register. Flatworms — Phylum Platyhelminthes. Marine Discovery Centres [2007-04-09].
↑ "Kingdom Plantae Tree of Life".
外部连结
Are phyla "real"? Is there really a well-defined "number of animal phyla" extant and in the fossil record?
Major Phyla Of Animals
参考来源
维基百科-门 (生物)
出自A+医学百科 “门 (生物)”条目 http://www.a-hospital.com/w/%E9%97%A8_(%E7%94%9F%E7%89%A9) 转载请保留此链接
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