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Extinct class of marine invertebrates
Blastoids (class Blastoidea) are an extinct type of stemmed echinoderm, often referred to as sea buds. They first appear, along with many other echinoderm
Blastoid
Stem cell-based embryo model
A blastoid is an embryoid, a stem cell-based embryo model which, morphologically and transcriptionally resembles the early, pre-implantation, mammalian
Blastoid_(embryoid)
Extinct genus of marine invertebrates
Pentremites is an extinct genus of blastoid echinoderm belonging to the family Pentremitidae. These stalked echinoderms averaged a height of about 11 centimetres
Pentremites
Type of blood cancer
small to intermediate-sized cells with irregular nuclei. Blastic (aka blastoid) variants have intermediate to large-sized cells with finely dispersed
Mantle_cell_lymphoma
Extinct group of marine invertebrates
complex clade. This complex clade includes a branch of rhombiferans, blastoids, parabloastoids (as sister to the lone asteroblastid diploporitan available
Diploporita
Gomphocystites. Waters & Macurda (2026) reevaluate the affinities of blastoids and propose a new classification of members of the group, reorganizing
2026_in_paleontology
Class of extinct echinoderms
established to encompass stalked taxa that were neither crinoids nor blastoids. It was shown to be polyphyletic in the late 1960s but continues to be
Cystoidea
Class of echinoderms, marine animal
– so-called "starfish beds". By the late Paleozoic, the crinoids and blastoids were the predominant echinoderms, fragments of which are almost the only
Starfish
Geologic formation in northern Arkansas
Macurda Jr, D. B. (1977). "Late Mississippian and Early Pennsylvanian blastoids from northeastern Oklahoma and northwestern Arkansas" (PDF). Oklahoma
Hale_Formation
Earth's most severe extinction event
Cnidaria Anthozoans 96% Tabulate and rugose corals died out Echinodermata Blastoids 100% Crinoids 98% Inadunates and camerates died out Mollusca Ammonites
Permian–Triassic extinction event
Permian–Triassic_extinction_event
Fifth period of the Paleozoic Era
Echinoids such as Archaeocidaris and Palaeechinus were also present. The blastoids, which included the Pentreinitidae and Codasteridae and superficially
Carboniferous
fish called placoderms, snails, sharks, stromatolites, trilobites and blastoids. Bryozoans (moss animals) are a type of marine fossil commonly found in
Animals_of_Devonian_Michigan
Extinct genus of marine invertebrates
Cryptoblastus is a genus of extinct blastoids, a primitive group of echinoderms related to the modern sea lilies. Fossils are found in sedimentary rocks
Cryptoblastus
Class of echinoderms
within the blastozoans (the eocrinoids and their derived descendants, the blastoids and the cystoids), whereas the most popular alternative suggests that
Crinoid
Geologic unit in northern Arkansas and eastern Oklahoma
Macurda Jr, D. B. (1977). "Late Mississippian and Early Pennsylvanian blastoids from northeastern Oklahoma and northwestern Arkansas" (PDF). Oklahoma
Hindsville_Formation
Extinct genus of marine invertebrates
instead, being more closely related to the blastoids. Gogia is distinguished from sea lilies, and most other blastoids, in that the plate-covered body was shaped
Gogia
Extinct order of marine invertebrates
Spiraculata is an order of Blastoids. These blastoids are characterized by indirect entrance to the hydrospires through canals by way of pores. Acentrotremites
Spiraculata
National park in Kentucky, United States
potential vegetation form. Common fossils of the cave include crinoids, blastoids, and gastropods. The Mississippian limestone has yielded fossils of more
Mammoth_Cave_National_Park
Cancer of the lymphatic system
diagnosis Diffuse large B-cell lymphoma, high-grade B cell lymphoma, lymphoblastic leukemia, mantle cell lymphoma (blastoid variant) Treatment Chemotherapy
Burkitt_lymphoma
Extinct genus of marine invertebrates
Deltoblastus is a genus of blastoid echinoderms that lived in the Permian. Its fossils are known from Asia. Fossils (Smithsonian Handbooks) by David Ward
Deltoblastus
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the prehistoric life of Tennessee
List_of_the_prehistoric_life_of_Tennessee
Class of echinoderms
Caryocrinites Hemicosmites Eocrinoids Glyptocystitoids (Rhombiferans) Blastoids Eublastoids (Blastoids) Coronoids (Blastoids) Hemicosmitoids (Rhombiferans)
Eocrinoidea
Miniaturized and simplified version of an organ
"Blastoid: The backstory of the formation of blastocyst-like structure solely from stem cells". The Node. The Company of Biologists Ltd. "Blastoid".
Organoid
Paleontological research occurring within or conducted by Georgia
have been preserved. Other Paleozoic inhabitants of Georgia included blastoids, bryozoans, cephalopods, crinoids, and gastropods. The geologic record
Paleontology in Georgia (U.S. state)
Paleontology_in_Georgia_(U.S._state)
Marine phylum of animals often with radial symmetries
from northeastern Estonia Fossil crinoid crowns Calyx of Hyperoblastus, a blastoid from the Devonian of Wisconsin In 2019, 129,052 tonnes of echinoderms were
Echinoderm
Paleozoic fold and thrust belt in South Africa
molluscs, echinoderms (including starfish, crinoids, and the extinct blastoids and cystoids), foraminifera and fish with jaws (placoderms). The upper
Cape_Fold_Belt
Extinct genus of echinoderms
Lepocrinites is a genus of rhombiferan blastoids (Echinodermata). "ART. XXXV.--A New Cystid from the Clinton Formation of Ontario--Lepadocystis clintonensis"
Lepocrinites
Removal of skin cells for medical examination
the original on 15 February 2012. Retrieved 9 February 2013. "Congenital Blastoid Nevus". rjreed.com. Archived from the original on 5 October 2011. Retrieved
Skin_biopsy
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Oklahoma
List_of_the_Paleozoic_life_of_Oklahoma
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Tennessee
List_of_the_Paleozoic_life_of_Tennessee
Subphylum of marine invertebrates
Blastozoa Temporal range: Cambrian–Permian PreꞒ Ꞓ O S D C P T J K Pg N Blastoids, an example of a single group of blastozoans. Scientific classification
Blastozoa
Hard shell of some spherical marine animals
echinoderms (like crinoids, but also many fossile groups such as cystoids or blastoids), the correct word is "theca". For diatoms, the term in use is "frustule"
Test_(biology)
published in the year 2018. A study on the morphology of specimens of the blastoid species Deltoblastus batheri and Deltoblastus delta from the Permian of
2018 in echinoderm paleontology
2018_in_echinoderm_paleontology
abundant fossils. Other common lifeforms include their relatives the blastoids. The pinhead-sized foraminiferan Endothyra fed on seafloor detritus and
Geological history of North America
Geological_history_of_North_America
River in Ohio, United States
April 15, 2018. Ausich, William I.; Guenther, Robert L. (February 1996). "Blastoids from the Cuyahoga Formation of Ohio (Echinodermata; Lower Mississippian)"
Euclid_Creek
and Sales". TouchArcade. January 11, 2021. Retrieved October 24, 2021. "Blastoid Breakout (ブラストブレークアウト)". Nintendo Japan (in Japanese). Retrieved November
List of Nintendo Switch games (An–Az)
List_of_Nintendo_Switch_games_(An–Az)
Extinct group of marine invertebrates
Paul, C.R.C. (2021). "New insights into the origin and relationships of blastoid echinoderms". Acta Palaeontologica Polonica. 66 (1): 41–62. doi:10.4202/app
Pelmatozoa
subgroups, is published by Anderson & Bauer (2024). Evidence from the study of blastoid specimens from the Devonian Hunsrück Slate and from Nümbrecht-Wirtenbach
2024_in_paleontology
phacopid trilobites, proetid trilobites, ostracods, phyllocarids, crinoids, blastoids, edrioasteroids, dendroid graptolites, conodonts, arthrodire placoderms
Milwaukee_Formation
Australian science journalist
Prove It: A Scientific Guide for the Post-Truth Era 2021 "Countdown to iBlastoids", The Monthly 2019 "Chasing the miracle of gene therapy", The Monthly
Elizabeth_Finkel
Paleontological research occurring within or conducted by Arkansas
across this area of the state. Pennsylvanian Arkansas was home to the blastoid Pentremites, the brachiopods Composita and Spirifer, and other invertebrates
Paleontology_in_Arkansas
Bedrock unit in Indiana and Kentucky, United States
Ctenoloculina, Flaccivelum, Hollina, Hollinella, and Subligaculum. The Blastoids Codaster alternatus and Codaster pyramidatus, among others, were identified
Jeffersonville_Limestone
Geologic formation or member in northern Arkansas
Mississippian subperiod including crinoids, brachiopods, bryozoa, conodonts, blastoids, ostracods and rugose coral. Paleontology portal List of fossiliferous
St._Joe_Formation
Geological formation in Germany
Triacrinus Eutaxocrinus Taxocrinus Rhenechinus A echinoid Pentremitidea A blastoid Schizotremites Mitrocystites (Dalejocystis) A mitrate Rhenocystis Dehmicystis
Hunsrück_Slate
Extinct family of animals
to its similarity to primitive echinoderms (such as stylophorans and blastoids); while the posterior structure (similar to that of the cystoids and eocrinoids)
Vetulocystidae
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the prehistoric life of Virginia
List_of_the_prehistoric_life_of_Virginia
Mountain in Huntsville, Alabama, United States
Mississippian limestone is rich in marine fossils, especially crinoids and blastoids.[citation needed] Much of the western slope of the mountain - the backdrop
Monte_Sano_Mountain
Paleontological research in the U.S. state of New Mexico
bioherms. The local Mississippian biodiversity included at least 6 kinds of blastoids 202 brachiopods, 33 bryozoans, 57 corals, 85 crinoids, 22 gastropods,
Paleontology_in_New_Mexico
Austrian biomedical research organisation
Vienna): Modeling human disease. Nicolas Rivron: Blastoid development and implantation. Developer of the blastoid, a complete embryo model. Kristina Stapornwongkul:
Institute of Molecular Biotechnology
Institute_of_Molecular_Biotechnology
Oman A blastoid belonging to the family Codasteridae. Angioblastus qararii Sp. nov Valid Webster et al. Permian (Kungurian) Oman A blastoid belonging
2025_in_paleontology
Group of rock formations within the Cape Supergroup sequence of rocks
molluscs, echinoderms (including starfish, crinoids, and the extinct blastoids and cystoids), foraminifera and fish with jaws (placoderms). The upper
Table_Mountain_Sandstone
Museum in Appleton, Wisconsin, US
Devonian trilobite Eldredgeops? norwoodensis, Milwaukee Head of the Devonian blastoid Hyperoblastus, Milwaukee Trackway of one of the earliest land-walkers,
Weis_Earth_Science_Museum
Subphylum of marine invertebrates
be equivalent to the Crinoidea total group. List of echinoderm orders Blastoids, superficially similar-appearing echinoderms that belong to a different
Crinozoa
Paleontological research in the U.S. state of Missouri
abundant Archimedes screws and Evactinopora bryozoan, very abundant blastoids, abundant lacy bryozoans, tabulate corals, tetracorals, endothyroid foraminferans
Paleontology_in_Missouri
rhombiferans or diploporans during the Ordovician and Silurian or [[[blastoid]]s during the Lower Mississippian, can locally be the predominate bioclast
Encrinite
American mineralogist (1776–1850)
as troostite. In 1866, Dr. Benjamin F. Shumard named a genus of fossil blastoids Troosticrinus in his honor. In 1909, Elvira Wood edited and published
Gerard_Troost
Geologic formation in New Mexico, United States
assemblage, including brachiopods such as Rhipidomella and Linoproductus, blastoid echinoderms such as Pentremites conoideus, cnidarians such as Zaphriphyllum
Kelly_Limestone
Paleontological research in U.S
crinoids are known from the region and more than 50 different kinds of blastoids as well. Sharks left behind their teeth to fossilize during the Permian
Paleontology_in_Texas
Paleontological research in the U.S. state of Iowa
trilobites. The life of Mississippian Iowa included blastoids, brachiopods, coral, crinoids, and starfish. Blastoids from this time period left behind remains in
Paleontology_in_Iowa
Geologic formation in Arkansas, United States
Macurda Jr, D. B. (1977). "Late Mississippian and Early Pennsylvanian blastoids from northeastern Oklahoma and northwestern Arkansas" (PDF). Oklahoma
Pitkin_Formation
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Pennsylvania
List_of_the_Paleozoic_life_of_Pennsylvania
Medical condition
described.[needs update] The cell of origin is believed to be an NK cell. Blastoid NK cell lymphoma appears to be a different entity and shows no association
Aggressive_NK-cell_leukemia
Extinct genus of cartilaginous fishes
variety of other cartilaginous fish as well as invertebrates such as blastoids, brachiopods, bryozoans, crinoids and corals. List of prehistoric cartilaginous
Troglocladodus
Paleontological research in the U.S. state of Oklahoma
local fauna included Archimedes, brachiopods, conodonts, echinoderms, the blastoid Pentremites, and trilobites. Contemporary brachiopod families included
Paleontology_in_Oklahoma
Mississippian period geologic formation in Appalachia and Midwest United States
Taxocrinus, Synbathocrinus dentatus, Halysiocrinus dactylus (from Nada Mbr.). Blastoids: Granatocrinus kentuckyensis (from New Providence Shale) A rare soft-bodied
Borden_Formation
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the prehistoric life of Nevada
List_of_the_prehistoric_life_of_Nevada
interpret this finding as indicative of the presence of sexual dimorphism in blastoids, as well as of early evolution of internal brooding of larvae in this
2023_in_paleontology
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Kentucky
List_of_the_Paleozoic_life_of_Kentucky
Paleontological research occurring within or conducted by Alabama
life forms as fossils. The Mississippian marine life of Alabama included blastoids, brachiopods, bryozoans, corals, and crinoids. Alabama was as swampy as
Paleontology_in_Alabama
Sumrall Carboniferous (Mississippian) Glen Dean Formation United States A blastoid, a species of Diploblastus. Drepanocystis Gen. et sp. nov Valid Sumrall
2012_in_paleontology
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Montana
List_of_the_Paleozoic_life_of_Montana
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the prehistoric life of Montana
List_of_the_prehistoric_life_of_Montana
Paleontological research in the U.S. state of Michigan
was more than fifteen feet long. Crinoids were also present. So were blastoids, but they were not as common as the others. Michigan's Middle Ordovician
Paleontology_in_Michigan
Paleontological research in the U.S. state of Wisconsin
worms (scolecodonts), trilobites, ostracods, phyllocarids, crinoids, blastoids, edrioasteroids, graptolites, conodont elements, fishes (placoderms, sharks
Paleontology_in_Wisconsin
Geologic formation in West Virginia, United States
brachiopods, bivalves, gastropods, corals, trilobites, ostracods, crinoids, and blastoids. Only one site in southeast West Virginia has produced vertebrate material
Bluefield_Formation
Permian Timor A blastoid belonging to the family Schizoblastidae. Deltoblastus elevatus Sp. nov Valid Morgan Permian Timor A blastoid belonging to the
2015_in_paleontology
Geologic formation in Ohio
units in Ohio Ausich, William I.; Guenther, Robert L. (February 1996). "Blastoids from the Cuyahoga Formation of Ohio (Echinodermata; Lower Mississippian)"
Cuyahoga_Formation
Königshof; S. K. Carmichael; M. Ariuntogos (2020). "Famennian crinoids and blastoids (Echinodermata) from Mongolia". Palaeobiodiversity and Palaeoenvironments
2020_in_paleontology
functional efficiency of hydrospires of blastoids, evaluating their potential significance for longer survival of blastoids than other blastozoan echinoderms
2021_in_paleontology
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Virginia
List_of_the_Paleozoic_life_of_Virginia
Geologic formation in Arizona, USA
invertebrate burrows and trails, and cephalopods. Less common are the fossils of blastoids, trilobites, ostracods, fish teeth, and algal remains. Microfossils of
Redwall_Limestone
"A quadrupling of Famennian pelmatozoan diversity: new Late Devonian blastoids and crinoids from northwest China". Journal of Paleontology. 77 (5): 922–948
List_of_crinoid_genera
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Arkansas
List_of_the_Paleozoic_life_of_Arkansas
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Arizona
List_of_the_Paleozoic_life_of_Arizona
Paleontological research in the U.S. state of New York
eurypterids, snails (gastropods), phyllocarids, hyoliths, phyllocarids, blastoids, cystoids, and sponges. Conodonts and graptolites were also present. The
Paleontology_in_New_York
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
List of the Paleozoic life of Indiana
List_of_the_Paleozoic_life_of_Indiana
Geologic formation in Arkansas and Oklahoma, United States
Macurda Jr, D. B. (1977). "Late Mississippian and Early Pennsylvanian blastoids from northeastern Oklahoma and northwestern Arkansas" (PDF). Oklahoma
Fayetteville_Shale
(crinoids / sea lilies) – See Crinozoa above Subphylum Blastozoa [†] (extinct blastoids) Class Diploporita Class Rhombifera Subphylum Echinozoa (mobile echinoderms)
Taxonomy of commonly fossilised invertebrates
Taxonomy_of_commonly_fossilised_invertebrates
BLASTOID
BLASTOID
BLASTOID
BLASTOID
Surname or Lastname
English
English : possibly a variant of Warman.
Boy/Male
Celebrity, Hindu, Indian
Lord of the Universe
Boy/Male
German
Steward; Shepherd
Girl/Female
Greek
Daughter of Pandareos.
Boy/Male
British, Christian, English, German
Famous; A Diminutive of Robert or Robin
Girl/Female
Indian
An Adjective to Happy as Happiest; A Type of Grass that Cuts Only Bad Person's Skin
Boy/Male
Tamil
Lord Vishnu
Boy/Male
Bengali, Gujarati, Hindu, Indian, Jain, Kannada, Malayalam, Marathi, Sanskrit
Plenty; Maximum; Intelligent; Young and Dynamic; Earth
Biblical
Haggi, a stranger
Boy/Male
Tamil
Rammohan | ராமமோஹநÂ
Lord Rama and Lord Krishna
BLASTOID
BLASTOID
BLASTOID
BLASTOID
BLASTOID
n.
A genus of crinoids belonging to the Blastoidea. They have five petal-like ambulacra.
n. pl.
One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.
n. pl.
A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. Most of the fossil species, like some that are recent, were attached by a jointed stem. See Blastoidea, Cystoidea, Comatula.
n.
One of the Blastoidea.