#Nummulites
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wrycritic.bsky.social
Can't blame the guy
Pictures of nummulites
March 28, 2026 at 4:14 PM
berndandeweg.bsky.social
Beautiful perpendicular views of #Nummulites #fossils on the floor, never seen them this nice before #geology #UrbanGeology ⚒️
December 2, 2025 at 3:45 PM
andrejpaleo.bsky.social
While discussing ideas on the evolution with @svalver.bsky.social and wandering around wonderful Barcelona, I'm learning some architectural paleontology. Giant (pea-sized) foraminifera — Nummulites and some sea urchin spines. Provenance probably local Eocene «piedra de Gerona», España.
🧪⚒️ #Geology
Nummulites Sea urchin spines in the Nummulites matrix Sea urchin spines in the Nummulites matrix
November 25, 2025 at 8:16 PM
thammerich.bsky.social
⚒ #FossilFriday 🦑

📷 Nummulites
Type of fossil foraminifera, lived in the warm shallow seas of the Tertiary (~52my).

📍 Rock face of Piz d'Artgas (Elev.: 2600m/8530ft) , Grisons, Switzerland 🇨🇭

#geology #paleontology #fossil
Picture of rock face of Mount Piz d'Artgas (Elevation: 2600m / 8530ft) showing dark brown rock matrix with abundant light brown flat elongated Nummulite fossils in various orientations. A humans left hand on the left part of the picture for size reference. Trivia: The ancient Egyptians used nummulite shells as coins, pyramid limestones contain nummulites.
December 12, 2025 at 3:20 PM
ferwen.bsky.social
#FossilFriday The Egyptian Pyramids are constructed of Eocene aged nummulitic limestone. The thin-section shows Nummulites from the pyramid of Kheops ⚒️🧪🔬
wp.me/p3ihHu-cX #ForamFriday
January 24, 2025 at 3:39 PM
ezequielvera.bsky.social
Fósiles urbanos en el restaurant Fiamma, en Av. Rivadavia 6501, CABA.
Gastrópodos, corales y también Nummulites
April 7, 2026 at 10:15 PM
carbon8.bsky.social
Another gorgeous #Nummulites #foraminifera #fossil specimen from the #Eocene —this one is Nummulites gizhensis from the Wadi Thamat Formation (Middle #Eocene: ~48–41 Ma). Yuge!!
A large benthic foraminiferal fossil from the middle Eocene in Libya—color pencil for size. These are single-celled organisms!
February 14, 2025 at 10:27 PM
sapinuwa.bsky.social
I found some #fossillllzzzz😍 again
#urbangeology
A pavement with nummulite and bivalve fossils on it The same stone with nummulites
December 7, 2024 at 4:28 PM
pavementgeology.bsky.social
I just had to buy this vintage brooch because it uses probably the most unexpected stone I have ever seen in jewellery - nummulitic limestone! It’s probably 1930s and the other stone used is marcasite #decorativestone
A 1930s bar brooch with a central oblong polished stone which is a nummulitic limestone (nummulites are small fossils). The brooch has marcasite set scrolls of foliage at each end. A close up of the nummulitic limestone with white and grey grain-like fossils in a red-orange matrix.
August 16, 2025 at 5:23 PM
geologyjohnson.bsky.social
I wonder if this is the same Eocene age limestone that has all the giant nummulites in it? #Geology #Paleontology
alisonfisk.bsky.social Alison Fisk @alisonfisk.bsky.social · Feb 7
Artists have always loved to sketch!

Sketch of a sparrow from Egypt dated c. 1479–1458 BC.

Some 3,500 years ago in Egypt, artists used flakes of limestone rather than paper sketchpads!

MMA excavations 1922-23, Deir el-Bahri. 📷 The Met www.metmuseum.org/art/collecti...

#FindsFriday
#Archaeology
Met Museum photo of an Ancient Egyptian artist’s painting of a swallow on a flake of limestone, dated to the New Kingdom, Dynasty 18, joint reign of Hatshepsut and Thutmose III, c. 1479-1458 BC. The sparrow stands in profile with head to the right. It is delicately painted with a pinkish body with the outline and details painted in a reddish/brown. It’s legs, eye, and beak are painted black. H. 6.6 cm (2 5/8 in.) W. 10.6 cm (4 3/16 in.) This may have been a practice drawing of the sparrow hieroglyph which was used for words meaning ‘small’, ‘poor’, or ‘bad’. The Egyptian artisans who decorated tombs and temples made practice sketches on flakes of limestone which are known by egyptologists as ostraca (singular: ostracon). Sometimes the drawings were used as a template when transferring an image to the wall of a tomb or a temple. Limestone flakes were readily available for this purpose as by-products of the construction of temples and rock-cut tombs. A number of ostraca were recovered at Deir el-Bahri during the 1922-23 MMA excavations.
February 7, 2025 at 12:35 PM
friedmanlab.bsky.social
I've seen fossils in some remarkable places, but this takes the prize: the benthic foram Nummulites in the base of the Great Pyramid of Giza. These massive blocks were quarried from the Eocene Mokkatam Formation when a relictual population of woolly mammoths still lived on Wrangel Island.
Disc-shaped fossils with concentric grooves scattered through a limestone block. Image of the apex of the Great Pyramid, taken from the base of the southeast corner. The layers of massive blocks of limestone composing the pyramid are clearly visible. The pyramid is set against a sunny blue sky.
February 2, 2026 at 5:43 PM
nitrotolueno.bsky.social
Te diría que nummulites.
December 22, 2024 at 8:59 PM
sapinuwa.bsky.social
There is a carnival of fossils on the floor and the walls of Presidential Symphony Orchestra's concert hall in Ankara!🥳
#urbangeology
A horizontal cut echinoid on the floor A music note on the limestone floor full of nummulites, and my feet A nummulite with its concentric rings clearly seen Another echinoid
June 12, 2025 at 3:56 PM
carbon8.bsky.social
Here's a juggernaut #Nummulites, an #Eocene large #benthic #foraminifera —note that this is ONE cell!! (also cool fact: the Pyramids in Egypt are built with limestone rocks that contain Nummulites #fossils)
A USB stick next to a rounded, lenticular Nummulites benthic foraminifera fossil (which used to be one cell!) dating to the Eocene period (~50-35 million years old)
February 14, 2025 at 8:47 PM
nishimoto.rocks
Nummulites fossils in a building wall, Ginza, Tokyo. #pavementgeology
銀座のビルで見つけたヌムリテス(貨幣石)の化石。 #街の中で見つかるすごい石 #街角地質学
September 13, 2024 at 6:02 AM
ezequielvera.bsky.social
Fósiles urbanos, pero esta vez en un lugar donde ya hay fósiles: el museo argentino de ciencias naturales Bernardino Rivadavia.

Nummulites y... erizo de mar? Si subiste al entrepiso para ver mejor al megaterio, están ahí
August 18, 2026 at 6:36 PM
sapinuwa.bsky.social
Nummulites on a park pavement in Sivrihisar🏙️🌁🪨
February 26, 2024 at 3:25 PM
thepalass.bsky.social
Surviving global cooling: morphological trends in reticulate Nummulites across the Eocene–Oligocene transition onlinelibrary.wiley.com/doi/10.1111/... @moononthebones.bsky.social @lauraminifera.bsky.social @nhmdk.bsky.social @oeadworldwide.bsky.social
Digital reconstruction of a CT-scanned reticulate Nummulites (foraminifera), shown from two different angles. Successive whorls are indicated by different colours (purple for the outermost whorl, followed by green, blue, red, and yellow in the centre). Scale bar at the bottom is 1 mm (whole organism has a diameter of about 2 mm).
March 19, 2025 at 1:56 PM
lithospheric.jorgegines.com
Diría que fusulínidos y algún nummulites. Foraminíferos en general.
December 22, 2024 at 8:57 PM
pavementgeology.bsky.social
They are the fossil nummulites, single called organisms that lived on the sea floor
August 17, 2025 at 9:58 AM
sabineshutterbug.bsky.social
It’s #RockinTuesday and I’m going to rock it with traces of long gone life. These are nummulites, large foraminifera (single-celled protozoans) from the Eocene epoch (about 56-34 million years ago). Almost beyond imagination.
#photography
#PhotographersOfBluesky
#EastCoastKin
I discovered this intriguing stone slab in a dumpster filled with leftovers from path restorations in a local park. The slab features a weathered, moss-covered surface of rough, beige-brown limestone etched with multiple circular impressions. The close-up photograph reveals a textured rock face pocked by several flat, disc-shaped fossils embedded in the stone. These patterns stand out as tight spirals with fine radial lines radiating from the center, resembling coiled coins or targets, set against a gritty, uneven matrix lightly dusted with green moss. These are nummulites, the fossilized shells of large, single-celled foraminifera, protozoans that lived in warm, shallow Eocene seas. Their lenticular shells, up to 5 cm across, consist of numerous tightly coiled chambers separated by septa, creating the distinctive spiral cross-sections visible here. Nummulites thrived mainly during the Eocene epoch, 56 to 34 million years ago, forming vast limestones like those quarried in parts of Europe, including Germany. And yes, I had some internet help researching the nummulites. 😀
February 17, 2026 at 8:33 AM
echinoblog.bsky.social
The translated Japanese says that they are nummulites, fossilized foraminifera
September 18, 2026 at 3:55 PM
cottonjenny.bsky.social
Morphological trends in reticulate Nummulites across the Eocene–Oligocene transition - Koorapati - 2025 - Palaeontology - Wiley Online Library onlinelibrary.wiley.com/doi/full/10....
Morphological trends in reticulate Nummulites across the Eocene–Oligocene transition
At the Eocene–Oligocene transition (EOT), c. 34.44–33.65 Ma, the Earth's climate shifted from ‘greenhouse’ to ‘icehouse’ conditions. This change coincides with the first continental ice growth on Ant...
onlinelibrary.wiley.com
April 4, 2025 at 2:17 PM
glennjaecks.bsky.social
everyone knows that Nummulites are magical, hence nummulitic limestones can levitate!
September 14, 2025 at 1:20 PM