Phoronids (scientific name Phoronida, sometimes called horseshoe worms) are a small phylum of marine animals that filter-feed with a lophophore (a "crown" of tentacles), and build upright tubes of chitin to support and protect their soft bodies. They live in most of the oceans and seas, including the Arctic Ocean but excluding the Antarctic Ocean, and between the intertidal zone and about 400 m… Web腕足动物门 腕足动物门 （ 學名 ： Brachiopoda ）是 动物界 的一个 门 ，屬於 底栖 、有一對硬壳的 海 产 觸手冠動物 。 但與 雙殼類 動物不同的是：其殼是上、下開合，而不是左、右開合。 鉸 位在後背部，而前方可開合作捕食或防御。 牠們自 寒武紀 開始演化，在 古生代 時期最為繁盛，物種多樣性達到最高峰，大约发现了超过30000个化石种，但之後於古生代末 …
Brachiopod classification Request PDF - ResearchGate
WebCohen, B. L., Monophyly of brachiopods and phoronids: reconciliation of molecular evidence with Linnaean classification (the subphylum Phoroniformea nov.). Proceedings of the Royal Society of London B, 267 (2000), 225–331. WebLes phoronides sont hermaphroditeset ont également accès à un mode de reproduction asexué[1]. On trouve ces animaux dans la plupart des mers non glaciaires du monde, dans les 70 premiers mètres (exceptionnellement plus profond, jusqu'à 400 m). cryptography block cipher
An Introduction to the Invertebrates - Cambridge Core
WebLinguliformea: These animals have valves that are made of calcium phosphate, and are mirror-images of each other. The most obvious feature, besides the valves, is the large, robust peduncle (Figure 1), which has an extension of the … WebPhoroniformea common name (s) phoronid worms blast name phoronid worms Lineage ( full ) cellular organisms; Eukaryota; Opisthokonta; Metazoa; Eumetazoa; Bilateria; Protostomia; Spiralia; Lophotrochozoa Comments and References: Phoroniformea Cohen, … WebAs extant bilaterian phyla emerged during the Lower Cambrian, these clades acquired morphological features that separated them from their stem groups. At the same time, morphological variants on the body plan within a phylum emerged that we recognize as classes and subphyla. dust and diseases board