However, false positive POC-CCA results could occur because of urinary tract inflammation (hematuria or pyuria) or as a result of mislabeling of specimens or unobserved "specimen sharing" among study subjects, who were not observed during sample collection.
The Palauan specimens shared facial, chin and dental traits with the Flores people, the scientists said, but had larger braincases "possibly at the very low end or below that typically observed in modern, small-bodied humans".
Our molecular analyses, however, unexpectedly showed that these two specimens shared 100% identical rbc L sequences, indicating that they represented a single species comprising two distinct external morphologies.
Niels Peder Kristensen and Klaus-Dieter Klass found that all three specimens shared some characteristics with stick insects and an obscure group called ice crawlers.
There was one instance of barcode sharing by members of different genera: Rhinocapsus vanduzeei (2 of 3 specimens) shared sequences with 2 of 5 specimens of Plagiognathus morrisoni, and maximum distance between specimens of R. vanduzeei and members of the P. fuscipes species group (P. emarginatae, fuscipes and morrisoni) was 0.806%.
In G. cristata, the three Chadian light-plumaged isabellina specimens shared the most common haplotype of the cristata lineage (Cri_MO_6, see Table 4), while the Algerian light-plumaged type specimen of helenae had the most common senegallensis haplotype (Cri_AL_1).
However, a number of specimens shared identical 18 S and 28 S ribosomal sequences (and additionally cox1 haplotypes) despite being collected from disparate geographic locations (Additional file 1, Table S1).
In anterior view, the three specimens share an enlarged medial condyle, which is expanded medially and cranio-caudally (medial margin not preserved in Fukuiraptor); along with a very tall and quadrangular-shaped ascending process (broken in MNVP 150070).
Numbers of specimens sharing the same sequence are indicated after the Genbank Accession Number.
In absence of matches with reference species, each group of specimens sharing very similar barcodes is identified and counted as a new species.
