However, morphological comparisons have failed to find any consistent differences between P. microdon and P. acrales, leading to the conclusion that there is only one species of false catshark.
Due to the metameric trunk and other characters that are considered plesiomorphic for Crustacea (e.g., paddle-like appendages and a cephalic shield) [ 4], Remipedia were regarded as basal crustaceans in most early morphological comparisons, and suggested to be the sister group of all other Crustacea [ 4- 7].
SEE contributed to morphological comparisons, initial identification of calibration points, and the morphological phylogenetic analysis.
Recent work [ 31, 67, 68] has suggested that extant African apes, and particularly Pan, are too derived to provide informative morphological comparisons when interpreting hominin morphology.
One was killed to facilitate additional morphological comparisons.
This allows us to make relevant morphological comparisons on the reconstructed trees.
Here we use our DNA-barcode analyses of the Churchill flora (including a few collections from a trip to the northern tip of Baffin Island, Nunavut, where applicable) to complete contemporary morphological and molecular comparisons to Lee's [ 3] detailed morpho-species summary to determine how accurately his summary reflects the origins of the Canadian Arctic flora.
Studies that include independent sources of evidence, such as morphological comparisons, reproductive biology and phylogenetics, are necessary to understand the history of diverging lineages and to resolve species identification [ 28].
We therefore used Prox1 as a marker for developing DG neuroepithelium in alternative sections to Cux2 staining for morphological comparisons.
These results highlight the importance of incorporating a broad comparative sample of species, phylogenetic information and time within morphological studies and put into context the use of particular extant species for morphological comparisons when interpreting hominin morphology.
