Even Diplodocoidea, the clade most completely represented by cranial material, contains only six genera with tooth-bearing elements associated with them (see above).
RT-PCR products spanning much of the genome were prepared using degenerate PCR primers derived from consensus sequences identified by sequence alignment of multiple members of the Avulavirus, Rubulavirus, Respirovirus, and Morbillivirus genera (see Materials and Methods).
Our species monophyly estimates were all obtained in the context of individual genera (see Materials and Methods), and so it is notable that all genera were supported as clades at the current limited taxon samplings in analysis of this seed-plant alignment (data not shown).
The length of time over which Lolium pollen dominated may be because many varieties have been bred with the potential to mature at different times throughout the year26, although it should be noted that Lolium species frequently hybridize with each other and that it is therefore difficult to distinguish these genera using genetic material alone.
In one instance, material once referred to four genera and seven species on the basis of differences in molar shape is now thought to represent differently aged individuals of a single species, Cardiatherium paranense.
No DNA material was available for the genera Blastophaga and Kradibia that each comprises single species.
Isolated bacteria associated to these materials were classified into 12 genera, three of which have been previously reported as highly efficient hydrocarbon degraders: Gordonia, Mycobacterium, and Rhodococcus.
This suggests the phages may occasionally transfer between species and genera and exchange genetic material resulting in cross-species and cross-genus HGT events.
The postcranial skeleton of Majungasaurus closely resembles those of Carnotaurus and Aucasaurus, the only other abelisaurid genera for which complete skeletal material is known.
Consistently, the complete molybdopterin biosynthesis pathway was lost in the Pneumocystis and Schizosaccharomyces genera (supplementary table S4, Supplementary Material online).
