Morphology and evolution of blastozoan echinoderms
Open accessIntegrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The 'class' Eocrinoidea is paraphyletic and comprises stem-groups of other blastozoan clades.
“The 'class' Eocrinoidea Jaekel, 1918 is paraphyletic and comprises stem-groups of other blastozoan clades (e.g. Sprinkle, 1973).”
From Chronology of early Cambrian biomineralization (2012) · cites this paper as Sprinkle, 1973
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Cited by 319
- Authors
- Sprinkle, J.
- Corresponding author
- Sprinkle, James
- ORCID
- Sprinkle, James
- Published
- 1973
- OpenAlex
- W2491235172
- Cited by
- 319
- References
- 0
- Citations by year
- 2026: 8 · 2025: 4 · 2024: 8 · 2023: 5 · 2022: 7 · 2021: 13 · 2020: 14 · 2019: 9 · 2018: 7 · 2017: 17 · 2016: 6 · 2015: 9 · 2014: 12 · 2013: 14 · 2012: 11
- FWCI
- 5.25
- Type
- book
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by-nc-sa
- Locations
- Biodiversity Heritage Library (Smithsonian Institution) (submittedVersion, cc-by-nc-sa)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Echinoderm biology and ecology
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Keywords
- echinoderm anatomy, echinoderm evolution, sea urchins, sea cucumbers
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
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