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- Arthropod_head_problem abstract "The arthropod head problem is a long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups, and how they are evolutionarily related to each other. While the dispute has historically centered on the exact make-up of the insect head, it has been widened to include other living arthropods such as the crustaceans and chelicerates; and fossil forms, such as the many arthropods known from exceptionally preserved Cambrian faunas. While the topic has classically been based on insect embryology, in recent years a great deal of developmental molecular data has become available. Dozens of more or less distinct solutions to the problem, dating back to at least 1897, have been published, including several in the 2000s.The arthropod head problem is popularly known as the "endless dispute", the title of a famous paper on the subject by Jacob G. Rempel in 1975, referring to its apparently intractable nature. Although some progress has been made since that time, the precise nature of especially the labrum and the pre-oral region of arthropods remain highly controversial.".
- Arthropod_head_problem thumbnail Robal.png?width=300.
- Arthropod_head_problem wikiPageID "12202667".
- Arthropod_head_problem wikiPageRevisionID "595671720".
- Arthropod_head_problem align "right".
- Arthropod_head_problem hasPhotoCollection Arthropod_head_problem.
- Arthropod_head_problem quote "It would be too bad if the question of head segmentation ever should be finally settled; it has been for so long such fertile ground for theorizing that arthropodists would miss it as a field for mental exercise.".
- Arthropod_head_problem source "R.E. Snodgrass, 1960".
- Arthropod_head_problem width "25.0".
- Arthropod_head_problem subject Category:Arthropod_morphology.
- Arthropod_head_problem subject Category:Comparative_anatomy.
- Arthropod_head_problem comment "The arthropod head problem is a long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups, and how they are evolutionarily related to each other. While the dispute has historically centered on the exact make-up of the insect head, it has been widened to include other living arthropods such as the crustaceans and chelicerates; and fossil forms, such as the many arthropods known from exceptionally preserved Cambrian faunas.".
- Arthropod_head_problem label "Arthropod head problem".
- Arthropod_head_problem sameAs m.02vvpwm.
- Arthropod_head_problem sameAs Q4797679.
- Arthropod_head_problem sameAs Q4797679.
- Arthropod_head_problem wasDerivedFrom Arthropod_head_problem?oldid=595671720.
- Arthropod_head_problem depiction Robal.png.
- Arthropod_head_problem isPrimaryTopicOf Arthropod_head_problem.
