At least 67,800 years ago someone made history when they placed their hand on a cave wall and spat ochre pigment around it to create an outline.

The resulting handprint found on the Indonesian island of Sulawesi has just been identified as the world’s oldest known cave painting.

Adam Brumm, whose research helping date the image has just been published in the journal Nature, said it was "the earliest evidence we have for humans creating cave art of any kind".

And while the discovery is revolutionary - challenging long-held views about where and when humans first made art - it is also reassuring some things have not changed in that time.

The original image was reworked, probably by the original artist, to make the fingers longer and more claw-like and was then covered up by another artist who used the surface for their own drawings including a picture of a chicken.

A standout collection of Mexican art not seen for years has reappeared in Spain - sparking questions about its ownership.

The 160 works in the Gelman Collection include pieces by Diego Rivera and Frida Kahlo as well as photographs by her father, Guillermo Kahlo.

They were brought together by collectors Jacques and Natasha Gelman who were major players in the golden age of Mexican cinema.

Their will said it should be displayed as a whole in a private institution in Mexico but that never happened and apart from the occasional loan to international museums much of the collection has not been seen since 2008 when it was held by a private foundation.

Now it has turned up in Spain where banking giant Santander said it had signed a deal for the "long-term management" of the collection which has been renamed the Gelman Santander Collection.

The deal was signed with Mexico's Zambrano family, who made their millions in concrete manufacturing but whose ownership of the collection had not been public knowledge until now. Santander said the family bought the collection two years ago.

The company said it will be shown as part of the inaugural program of Faro Santander - the arts center opening in its former HQ in the Spanish city before going to museums around the world.

Many of the works are reported to be protected by Mexican law with a Declaration of Artistic Monument status, which prohibits their permanent removal from the country, but Santander insisted its plans "comply with customs obligations and our responsibilities".

The value of two Marc Chagall murals in New York's Metropolitan Opera House. The cash-strapped organization said it is considering selling them to raise funds though any buyer would have to agree not to move them.

Sally Tallant is leaving New York's Queens Museum to take over as director of the Hayward Gallery in London - 25 years after working as an assistant curator there.

The UK-born curator took over in Queens seven years ago after working at the Liverpool Biennial and London's Serpentine Gallery.

She commissioned work by Mierle Laderman Ukeles and Suzanne Lacy while at Queens and also played a part in bringing permanent artworks by artists including Rashid Johnson to La Guardia Airport during her time in New York.

Tallant takes over from Ralph Rugoff who steps down in Spring after 20 years in charge.

The ancient tower tombs of Palmyra will be recreated as part of Syria's entry at this year's Venice Biennale.

Artist Sara Shamma and curator Yuko Hasegawa will present the large-scale immersive installation, The Tower Tomb of Palmyra, at the event which opens in May.

The original towers, which dated back to the 1st century AD, were monumental mausoleums destroyed during the Syrian civil war.

Palmyra is a UNESCO World Heritage site and was heavily looted during the conflict. At one point it was held by Islamic State forces who beheaded its retired antiquities chief Khaled al-Asaad after he refused to disclose the location of hidden antiquities.

Shamma said the work was "not only a reflection on loss, but a message of hope, unity, and the importance of protecting and restoring our shared heritage".

1 - Photographer Roe Ethridge's new exhibition includes still-life shots inspired by a visit to the archive of fashion firm Chanel. Among the work on show in Rude in the Good Way, at the Gagiosian gallery in Athens, is an image of a vintage perfume bottle he was given during his visit as well as portraits of his partner and a re-working of a Vogue Japan cover shot of English model Lila Moss.

2 - Martha Jungwirth's show opening tonight at Thaddaeus Ropac's Marais gallery in Paris includes 131 drawings and paintings produced over almost half-a-century. The exhibition's title, Don't leave your room, is inspired by the opening line of a poem by Russian-American poet Joseph Brodsky and refers to the fact she made many of them while sitting at home in front of the television.

3 - A sculpture of a giant ice cube covered in gold leaf and suspended in mid-air using a magnetic field is among the works in Korean artist Koo Jeong A's show opening today at Hauser & Wirth in Zurich.

1 - Painter Amy Sherald has signed with the Hollywood talent agents Creative Artists Agency (CAA). Sherald made a name for herself when she was commissioned to do the official portrait of Michelle Obama for the US National Portrait Gallery and hit the headlines again last year when she pulled a planned solo show from the same gallery in a row over censorship.

2 - Switzerland's entry at this year's Venice Biennale is a video installation inspired by a historic TV debate about the country's attitude to homosexuality. The Unfinished Business of Living Together uses archive footage from the 1978 show and is conceived by curators Gianmaria Andreetta and Luca Beeler with artists including Nina Wakeford.

3 - Brazilian artist Laura Lima is presenting her first solo show in London as part of the UK/Brazil season of culture. The show, which opens on Tuesday and runs to March 29, is a mixture of sculpture and performance art inspired by a life drawing class.

4 - The biennial Max Mara Art Prize for Women is going on a world tour and basing itself in a different country every time. The next award will be presented by a jury headed by the chief curator of New York's High Line, Cecilia Alemani, and will be based at the Museum of Modern and Contemporary Art in Indonesia.

5 - Jean Cooney has been appointed executive director of Creative Time - the New York-based group known for site-specific public art. She replaces Justine Ludwig who took charge of the Getty Museum's PST Art initiative last year.