Peptide Mass Fingerprinting of South American Xenarthrans: A New Resource for Zooarcheology and Palaeontology
Peptide Mass Fingerprinting of South American Xenarthrans: A New Resource for Zooarcheology and Palaeontology
Xenarthrans─armadillos, anteaters, and sloths─are endemic to the Americas, primarily inhabiting the Neotropics, where they represent a key component of faunal diversity. They have essential functions ...
pubs.acs.org
November 6, 2025 at 2:44 AM
Peptide Mass Fingerprinting of South American Xenarthrans: A New Resource for Zooarcheology and Palaeontology
Peptide Mass Fingerprinting of South American Xenarthrans: A New Resource for Zooarcheology and Palaeontology #JProteomeRes pubs.acs.org/doi/10.1021/...
Peptide Mass Fingerprinting of South American Xenarthrans: A New Resource for Zooarcheology and Palaeontology
Xenarthrans─armadillos, anteaters, and sloths─are endemic to the Americas, primarily inhabiting the Neotropics, where they represent a key component of faunal diversity. They have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Despite their frequent occurrence in archeological and paleontological contexts, their identification is often hindered by the highly fragmented and morphologically indistinct nature of bone remains. This limits our ability to track their biogeographic histories, population dynamics, and interactions with past human populations. To address this, we present a novel set of Zooarcheology by Mass Spectrometry (ZooMS) peptide markers for ten extant and extinct Xenarthran species, enabling taxonomic identification of fragmented and morphologically indistinct bone assemblages. By enhancing the taxonomic resolution of fragmented faunal material, this work advances the reconstruction of past species distributions, long-term biodiversity trends, and human–animal interactions. Furthermore, it provides a foundation for an improved understanding of Xenarthran extinction and adaptation dynamics and can support conservation and ecosystem restoration efforts by informing models of historical biogeography and species abundance.
pubs.acs.org
November 3, 2025 at 7:17 PM
Peptide Mass Fingerprinting of South American Xenarthrans: A New Resource for Zooarcheology and Palaeontology #JProteomeRes pubs.acs.org/doi/10.1021/...
Sloth World, 2025 (Part 1) — Tetrapod Zoology
Like me, you are no doubt a big fan of sloths...
tetzoo.com
October 29, 2025 at 10:00 AM
i'm gonna guess xenarthrans based on the promo materials so far
October 19, 2025 at 5:01 PM
i'm gonna guess xenarthrans based on the promo materials so far
[INTERACTION BAIT]
#PrehistoricPlanet was sometimes referred to as 'Pterosaur Planet' for the huge number of pterosaur species featured. Which group, do you think, will get the 'pterosaur treatment' in PhP S03?
A: Xenarthrans
B: Proboscideans
C: Felids
D: Humans
E: Something Else
#PrehistoricPlanet was sometimes referred to as 'Pterosaur Planet' for the huge number of pterosaur species featured. Which group, do you think, will get the 'pterosaur treatment' in PhP S03?
A: Xenarthrans
B: Proboscideans
C: Felids
D: Humans
E: Something Else
October 19, 2025 at 5:00 PM
[INTERACTION BAIT]
#PrehistoricPlanet was sometimes referred to as 'Pterosaur Planet' for the huge number of pterosaur species featured. Which group, do you think, will get the 'pterosaur treatment' in PhP S03?
A: Xenarthrans
B: Proboscideans
C: Felids
D: Humans
E: Something Else
#PrehistoricPlanet was sometimes referred to as 'Pterosaur Planet' for the huge number of pterosaur species featured. Which group, do you think, will get the 'pterosaur treatment' in PhP S03?
A: Xenarthrans
B: Proboscideans
C: Felids
D: Humans
E: Something Else
their slow metabolic rate is consistent with living sloths and other xenarthrans, which have some of the lowest metabolisms of all mammals. the perceived laziness of modern sloths can partly be attributed to their metabolisms
October 6, 2025 at 11:57 AM
their slow metabolic rate is consistent with living sloths and other xenarthrans, which have some of the lowest metabolisms of all mammals. the perceived laziness of modern sloths can partly be attributed to their metabolisms
Retrocopy formation and domestication shape genome evolution in sloths and other xenarthrans https://www.biorxiv.org/content/10.1101/2025.09.25.678567v1
September 28, 2025 at 7:35 AM
Retrocopy formation and domestication shape genome evolution in sloths and other xenarthrans https://www.biorxiv.org/content/10.1101/2025.09.25.678567v1
Retrocopy formation and domestication shape genome evolution in sloths and other xenarthrans https://www.biorxiv.org/content/10.1101/2025.09.25.678567v1
September 28, 2025 at 7:35 AM
Retrocopy formation and domestication shape genome evolution in sloths and other xenarthrans https://www.biorxiv.org/content/10.1101/2025.09.25.678567v1
OH MY I LOVE the designs and species choices here! You got me especially at the dugong (what a pleasant surprise!). And armadillos in general are already blessed creatures (I love xenarthrans), and the pinky fairy armadillo is extra cute!
A pleasure to know this set of characters!
A pleasure to know this set of characters!
September 24, 2025 at 8:41 PM
OH MY I LOVE the designs and species choices here! You got me especially at the dugong (what a pleasant surprise!). And armadillos in general are already blessed creatures (I love xenarthrans), and the pinky fairy armadillo is extra cute!
A pleasure to know this set of characters!
A pleasure to know this set of characters!
xenarthrans get no respect 🥺
August 16, 2025 at 8:57 PM
xenarthrans get no respect 🥺
who wants to go to south america with me to find as many xenarthrans as we can 🌎 💓 🦥
July 22, 2025 at 6:05 PM
who wants to go to south america with me to find as many xenarthrans as we can 🌎 💓 🦥
I’ve got NINE South American species characters (or ten if you include nine-banded armadillos)
((two birds, six xenarthrans, one reptile, and one coati))
I have an extraordinary love for Xenarthra BUT I what I NEED is more amphibians…
((two birds, six xenarthrans, one reptile, and one coati))
I have an extraordinary love for Xenarthra BUT I what I NEED is more amphibians…
July 15, 2025 at 8:16 AM
I’ve got NINE South American species characters (or ten if you include nine-banded armadillos)
((two birds, six xenarthrans, one reptile, and one coati))
I have an extraordinary love for Xenarthra BUT I what I NEED is more amphibians…
((two birds, six xenarthrans, one reptile, and one coati))
I have an extraordinary love for Xenarthra BUT I what I NEED is more amphibians…
Oh dear. Xenarthrans are still placental mammals.
Not marsupials!!!
Though I found out they are put in a special category now.
It seems all placentals have a stirrup shaped stapes.
Except Xenarthrans. They have a straight stapes like marsupials and monotremes 🫠🫠🫠🫠
Not marsupials!!!
Though I found out they are put in a special category now.
It seems all placentals have a stirrup shaped stapes.
Except Xenarthrans. They have a straight stapes like marsupials and monotremes 🫠🫠🫠🫠
July 13, 2025 at 6:59 PM
Oh dear. Xenarthrans are still placental mammals.
Not marsupials!!!
Though I found out they are put in a special category now.
It seems all placentals have a stirrup shaped stapes.
Except Xenarthrans. They have a straight stapes like marsupials and monotremes 🫠🫠🫠🫠
Not marsupials!!!
Though I found out they are put in a special category now.
It seems all placentals have a stirrup shaped stapes.
Except Xenarthrans. They have a straight stapes like marsupials and monotremes 🫠🫠🫠🫠
#A-ZAnimals X …ok here we go Xenarthrans are a group of mammals in South America including Anteater, Armadillo and Sloth …Jack Whites Queen of the Bees contains the lyric “I want to hold you like a sloth hugs a tree” …easy really !
m.youtube.com/watch?v=kQTc...
m.youtube.com/watch?v=kQTc...
Queen of the Bees
YouTube video by Jack White - Topic
m.youtube.com
July 1, 2025 at 7:40 AM
#A-ZAnimals X …ok here we go Xenarthrans are a group of mammals in South America including Anteater, Armadillo and Sloth …Jack Whites Queen of the Bees contains the lyric “I want to hold you like a sloth hugs a tree” …easy really !
m.youtube.com/watch?v=kQTc...
m.youtube.com/watch?v=kQTc...
The remarkably odd, mostly giant GLYPTODONTS are remarkably odd. But are they really _that_ remarkably odd, given that other #armadillos - yes, glyptodonts are armadillos - are remarkably odd too? A look ... tetzoo.com/blog/2025/6/... #mammals #evolution #xenarthrans
Armadillo Empire, Part 2: Fairies, Tolypeutines, and Where Glyptodonts Go — Tetrapod Zoology
Once more, it’s time to look at armadillos, both at their diversity and at some aspects of their evolutionary history…
tetzoo.com
June 28, 2025 at 10:11 AM
The remarkably odd, mostly giant GLYPTODONTS are remarkably odd. But are they really _that_ remarkably odd, given that other #armadillos - yes, glyptodonts are armadillos - are remarkably odd too? A look ... tetzoo.com/blog/2025/6/... #mammals #evolution #xenarthrans
That old idea where glyptodonts are the cousins to ALL #armadillos? Nope. It was mostly overlooked until recently, but armadillo experts have been pushing the idea that glyptodonts are nested _within_ armadillos since at least 2006. This, and more... tetzoo.com/blog/2025/6/... #xenarthrans #mammals
Armadillo Empire, Part 1: of Euphractines and Eutatines — Tetrapod Zoology
If you’ve read recent articles here, you’ll have seen the coverage I’ve been giving to armadillos…
tetzoo.com
June 17, 2025 at 9:12 AM
That old idea where glyptodonts are the cousins to ALL #armadillos? Nope. It was mostly overlooked until recently, but armadillo experts have been pushing the idea that glyptodonts are nested _within_ armadillos since at least 2006. This, and more... tetzoo.com/blog/2025/6/... #xenarthrans #mammals
Armadillo Empire, Part 1: of Euphractines and Eutatines -- now with some reader comments! tetzoo.com/blog/2025/6/... #armadillos #mammals #xenarthrans
Armadillo Empire, Part 1: of Euphractines and Eutatines — Tetrapod Zoology
If you’ve read recent articles here, you’ll have seen the coverage I’ve been giving to armadillos…
tetzoo.com
June 13, 2025 at 9:01 AM
Armadillo Empire, Part 1: of Euphractines and Eutatines -- now with some reader comments! tetzoo.com/blog/2025/6/... #armadillos #mammals #xenarthrans
Sloths are Xenarthrans, a group that also includes anteaters and armadillos and is found exclusively in the Americas. It includes two orders - Pilosa and Cingulata. Cingulata are armadillos, which makes both genera of sloths members of Pilosa.
May 29, 2025 at 2:38 AM
Sloths are Xenarthrans, a group that also includes anteaters and armadillos and is found exclusively in the Americas. It includes two orders - Pilosa and Cingulata. Cingulata are armadillos, which makes both genera of sloths members of Pilosa.
Unexpected pampatheriid from the early Oligocene of Peruvian Amazonia: insights into the tropical differentiation of cingulate xenarthrans: Historical Biology: Vol 0, No 0 - Get Access www.tandfonline.com/doi/full/10....
Unexpected pampatheriid from the early Oligocene of Peruvian Amazonia: insights into the tropical differentiation of cingulate xenarthrans
Cingulates (armoured xenarthrans) constitute one of the most peculiar endemic clades of South American mammals. Their first occurrence in the fossil record can be traced back to the early Eocene. H...
www.tandfonline.com
May 11, 2025 at 1:03 PM
Unexpected pampatheriid from the early Oligocene of Peruvian Amazonia: insights into the tropical differentiation of cingulate xenarthrans: Historical Biology: Vol 0, No 0 - Get Access www.tandfonline.com/doi/full/10....
Another #armadillo-themed article at Tetrapod Zoology, this time focusing on the unique Pichi of the south, a 'very pleasant armadillo' .... tetzoo.com/blog/2025/5/... #mammals #xenarthrans
Of Zaedyus, the Pichi — Tetrapod Zoology
Let’s look at armadillos some more. Or, let’s look at more armadillos. I mean, let’s look more at armadillos. Whatever: armadillos! More.
tetzoo.com
May 7, 2025 at 12:01 PM
Another #armadillo-themed article at Tetrapod Zoology, this time focusing on the unique Pichi of the south, a 'very pleasant armadillo' .... tetzoo.com/blog/2025/5/... #mammals #xenarthrans
Next at TetZoo: MORE #ARMADILLOS! For the last set of armadillo-themed musings, see... tetzoo.com/blog/2025/4/... #xenarthrans
The Fate of the Woolly Long-Nosed Armadillo of Peru — Tetrapod Zoology
One of my favourite mammal assemblages of all is Xenarthra, the ‘strange joint’ group that includes the remarkable and odd anteaters, sloths and armadillos…
tetzoo.com
May 7, 2025 at 10:30 AM
Next at TetZoo: MORE #ARMADILLOS! For the last set of armadillo-themed musings, see... tetzoo.com/blog/2025/4/... #xenarthrans
I totally agree! Xenarthrans are really unique mammals - the extant and extinct ones 😉
May 2, 2025 at 4:34 PM
I totally agree! Xenarthrans are really unique mammals - the extant and extinct ones 😉
Roaming from Canada to Argentina in the Mid-Late Pleistocene, dire wolves were hypercarnivores, consuming a wide range of prey from ungulates, xenarthrans, & proboscideans. Studies from La Brea suggest these large canids lived in monogamous packs with high male-male competition.
May 2, 2025 at 4:21 PM
Roaming from Canada to Argentina in the Mid-Late Pleistocene, dire wolves were hypercarnivores, consuming a wide range of prey from ungulates, xenarthrans, & proboscideans. Studies from La Brea suggest these large canids lived in monogamous packs with high male-male competition.
Xenarthrans are among the best of the #mammals. Look at all this action: ANTEATERS - SLOTHS - ARMADILLOS. Sooo much extinct awesome too. But living #xenarthrans are full of surprises. Do you know of the WOOLLY LONG-NOSED ARMADILLOS? Well... tetzoo.com/blog/2025/4/...
May 2, 2025 at 4:20 PM
Xenarthrans are among the best of the #mammals. Look at all this action: ANTEATERS - SLOTHS - ARMADILLOS. Sooo much extinct awesome too. But living #xenarthrans are full of surprises. Do you know of the WOOLLY LONG-NOSED ARMADILLOS? Well... tetzoo.com/blog/2025/4/...