Can you have two first authors on a paper?
Two (or more) people can split the first author position by becoming co-authors. In this case, the two names lead the list of authors and a small symbol is put above each with a notation stating that “these two authors contributed equally.” Even with co-authorship, there still has to be a leading co-author.
Who should be the last author?
The last author is usually the group leader or PI who may have given significant intellectual inputs and supervised the work, but might not have actively conducted the experiments or written the manuscript.
Can there be two second authors?
There is no written rule. In some cases where two or more authors participate with a very similar input and amount of experiments, it should be stated that those author contributed equally.
What does primary author mean?
What is a Primary Author? Edit. A Primary Author of a particular book is essentially a single active contributor to that book, who makes the vast majority of all substantive contributions to the book, and who has almost unilateral control over the book so long as they remain the primary author.
What does contributing author mean?
A co-author is any person who has made a significant contribution to a journal article. They also share responsibility and accountability for the results. If more than one author writes an article, you’ll choose one person to be the corresponding author.