Last Carmine Infantino work

 Carmine Infantino's last work appeared shortly before he died in BOOM Studio's Planet of the Apes.

 Daryl Gregory wrote the series from 2011 to 2013. Carlos Magno was the regular penciler for 16 issues and the Annual. After the cancellation the series was completed in three extra-length issues penciled by Diego Barreto: Planet of the Apes Special (Feb 2013), Planet of the Apes Spectacular (Jul 2013), Planet of the Apes Giant (Sep 2013).

 What is striking is that some pages were clearly laid out by Carmine Infantino. Infantino's compositions are very recognizable. Because he tends to draw symmetrical pictures, he often tilts the image right and left to break the static result. 

 Some examples on the first of these, the Special:

 On page 7 the wide panel is a hallmark of Infantino's style as are the tilted right followed by tilted left panels that follow.

The close-ups on the faces are giveaways, look at the one on the bottom of page 9.

Every panel on page 10 is typical of Infantino. 

Also the middle panel and last panel of page 11.

The fourth and fifth of page 12.

The first and last of page 13.

The faces and tilted panels of page 14.

 Typically the more distinctly Infantino pages are those where Barreto rushed the finishing/inking.  

 Other pages show Infantino's hand but have been reworked by Barreto.

 The reviewer here also noted the similarities: https://www.cbr.com/planet-of-the-apes-special-1/

 

 The middle issue, the Spectacular has the most extensive display, I see him on pages 6-9, 15-17, 21-23, 26-30.

 

 The third issue, the Giant, also features Infantino layouts.

 It would be interesting to see whether Infantino laid out all three issues or only the pages I identified.

 What could have incited Infantino to come out of retirement anonymously shortly before his death? Medical bills, personal relationship with the Barretos? Eduardo Barreto (Diego's father) had himself worked on DC Retroactive: Superman - The '70s (Sept. 2011) from his hospital bed shortly before his death.

 

 It is not unusual for artists to use uncredited help to reach deadlines but this sudden intrusion of Infantino in Diego Barreto's work may remain an unsolved mystery.