Do fishes constitute a monophyletic group? The simple term "fish" is no longer used alone for phylogenetic classification, although the word is quite usual. What definition could you give for a fish?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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2 Actinistia
Aquatic
Dipnai
Sarcopterygians
7 Caeciians
Uissamphibians
Rhipidistians
Uradela
Amphibians
10 Anura
Tetrapods
12 Mammalia
14
Testudinia
Terrestrial
Amniotes
17 Squamates
Sauropsids
Lepidasauria
Sphenodontids
Diapsids
Aves
Archosauria
21 Crocodilia
From Lecointre et Le Guyader (2001)
1-Sarcopterygians belong to the monophyletic group, the Vertebrates. They include some extant
aquatic species, commonly called "fishes" (see phylogenetic tree above). In the Vertebrate tree illustrated
below, there are other Vertebrate groups also referred to as "fishes".
Do fishes constitute a monophyletic group?
→ The simple term “fish" is no longer used alone for phylogenetic classification, although the word
is quite usual. What definition could you give for a fish?
Transcribed Image Text:2 Actinistia Aquatic Dipnai Sarcopterygians 7 Caeciians Uissamphibians Rhipidistians Uradela Amphibians 10 Anura Tetrapods 12 Mammalia 14 Testudinia Terrestrial Amniotes 17 Squamates Sauropsids Lepidasauria Sphenodontids Diapsids Aves Archosauria 21 Crocodilia From Lecointre et Le Guyader (2001) 1-Sarcopterygians belong to the monophyletic group, the Vertebrates. They include some extant aquatic species, commonly called "fishes" (see phylogenetic tree above). In the Vertebrate tree illustrated below, there are other Vertebrate groups also referred to as "fishes". Do fishes constitute a monophyletic group? → The simple term “fish" is no longer used alone for phylogenetic classification, although the word is quite usual. What definition could you give for a fish?
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