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Pancrustacea is the clade that comprises all crustaceans, and all hexapods (insects and relatives). [2] This grouping is contrary to the Atelocerata hypothesis, in which Hexapoda and Myriapoda are sister taxa, and Crustacea are only more distantly related.
Feb 2, 2005 · Recent molecular analyses indicate that crustaceans and hexapods form a clade (Pancrustacea or Tetraconata), but relationships among its constituent lineages, including monophyly of crustaceans, are controversial.
- Jerome C. Regier, Jeffrey W. Shultz, Robert E. Kambic
- 10.1098/rspb.2004.2917
- 2005
- 2005/02/02
Aug 8, 2023 · Most pancrustacean phylogenomic studies have recovered a clade comprising some combination of Branchiopoda, Cephalocarida, Hexapoda, and Remipedia, in a group termed Allotriocarida. In terms of the interrelationships, the sister group to hexapods has received the most attention.
Pancrustaceans (= crustaceans + hexapods) undergo some of the most radical ontogenetic changes seen in the Metazoa. The spectacular upper Cambrian ‘Orsten’ fauna preserves phosphatized fossil larvae, including putative stem- and crown-group pancrustaceans with amazingly complete developmental sequences.
- Jeffrey Shultz
Jun 6, 2005 · Neighbour-joining, maximum-likelihood and Bayesian posterior probabilities all suggest that crustaceans and hexapods are mutually paraphyletic. A crustacean clade of Malacostraca and Branchiopoda emerges as sister to the Insecta sensu stricto and the Collembola group with the maxillopod crustaceans.
- Charles E Cook, Qiaoyun Yue, Michael Akam
- 10.1098/rspb.2004.3042
- 2005
- 2005/06/06
Aug 5, 2015 · More recently, the hexapods have been shown to be evolutionarily derived from basal crustaceans, and the clade Pancrustacea recognizes this relationship.
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Are pancrustaceans hexapods?
Are hexapods evolutionarily derived from basal crustaceans?
Are crustacea and Hexapoda paraphyletic?
Are hexapods and crustaceans related?
Is Pancrustacea a stable clade?
Does hexapod morphology evolve from a primitive 'crustacean' condition?
Mar 12, 2008 · For instance, the Atelocerata concept held that hexapods and myriapods are united in one clade, but under the influence of molecular data (e.g. [4]) this concept was replaced by the view that crustaceans and hexapods constitute a monophyletic group, which is known as Pancrustacea (e.g. [2, 3, 5]).
