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Priapulida (priapulid worms, from Gr. πριάπος, priāpos 'Priapus' + Lat. -ul-, diminutive), sometimes referred to as penis worms, is a phylum of unsegmented marine worms. The name of the phylum relates to the Greek god of fertility, because their general shape and their extensible spiny introvert (eversible) … 展开
Priapulids are cylindrical worm-like animals, ranging from 0.2–0.3 to 39 centimetres (0.08–0.12 to 15.35 in) long, with a median anterior mouth quite devoid of any armature or … 展开
Stem-group priapulids are known from the Middle Cambrian Burgess Shale, where their soft-part anatomy is preserved, often in conjunction with their gut contents – allowing a reconstruction … 展开
• "Evolution of the penis worm". Press Releases. University of Bristol. 2006-08-09. 展开
There are 22 known extant species:
Phylum Priapulida Théel 1906
• Order Halicryptomorpha Salvini-Plawen 1974 [Adrianov & Malakhov 1995; Salvini-Plawen 1974; Eupriapulida Lemburg, 1999]
• Order … 展开CC-BY-SA 许可证中的维基百科文本 WoRMS - World Register of Marine Species - Priapulida
Cephalorhyncha (=Loricifera, Priapulida, Kinorhyncha, Nematomorpha), <B><I>in</I></B>: …
Priapulid | Marine Worms, Sedentary Lifestyle & Annelids | Britannica
priapulid, (phylum Priapulida), any of some 15 species of predatory, marine, mud-inhabiting, …
Priapulid worms: Pioneer horizontal burrowers at the Precambrian ...
2010年8月1日 · Here we show, by using experimental ichnology, that the treptichnid burrow …
Priapulidae - Wikipedia
Priapulidae is the canonical family of priapulid worms, comprising Priapulus and Priapulosis as well as the Carboniferous genus Priapulites.
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ichnology, that the treptichnid burrow systems were most probably produced by priapulid …
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Caught in the act: priapulid burrowers in early …
In common with most other trace fossils, frustratingly little is known about the affinities of their producers. Despite this uncertainty, however, there have been consistent suggestions that some of the earliest large burrows, such as T. …
Early Cambrian priapulid worms buried with their lined burrows
2006年8月16日 · Five specimens of the priapulid Maotianshania cylindrica preserved inside …
Anatomy and lifestyles of Early Cambrian priapulid worms …
2007年1月2日 · Corynetis and Anningvermis are two representative examples of the Early …
The hatching larva of the priapulid worm Halicryptus …
2009年5月26日 · Here we describe the hatching larva of the distantly related priapulid worm Halicryptus spinulosus (Fig. 1A–C) and compare it with the hatching larva of P. caudatus .
