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Pirasocrinidae

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Journal Article
Published: 01 March 1990
Journal of Paleontology (1990) 64 (2): 293–300.
Image
Examples of crowns representing the cladid crinoid family <b>Pirasocrinidae</b>, i...
in > PALAIOS
Published: 29 November 2018
Fig. 1.— Examples of crowns representing the cladid crinoid family Pirasocrinidae, illustrating the extreme spinosity characteristic of this group. All crowns are from the similarly aged Barnsdall Formation of northeastern Oklahoma. A ) Complete crown of the genus Plaxocrinus
Image
Fig. 8.   Early Permian crinoids from British Columbia.   a  . Catacrinidae...
Published: 23 September 2009
of cup with attached proximal columnals, X1. g , i . Pirasocrinidae gen. et sp. indet. ( g ) Basal view of solution leached cup showing proximal columnal, X1. ( i ) Lateral view of weathered crown showing spinose axillary brachials and part of tegmen, X1. h . Sagenocrinoidea fam. gen. et sp. indet
Journal Article
Journal: PALAIOS
Published: 29 November 2018
PALAIOS (2018) 33 (11): 508–513.
...Fig. 1.— Examples of crowns representing the cladid crinoid family Pirasocrinidae, illustrating the extreme spinosity characteristic of this group. All crowns are from the similarly aged Barnsdall Formation of northeastern Oklahoma. A ) Complete crown of the genus Plaxocrinus...
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Journal Article
Published: 23 September 2009
Canadian Journal of Earth Sciences (2009) 46 (9): 663–674.
... of cup with attached proximal columnals, X1. g , i . Pirasocrinidae gen. et sp. indet. ( g ) Basal view of solution leached cup showing proximal columnal, X1. ( i ) Lateral view of weathered crown showing spinose axillary brachials and part of tegmen, X1. h . Sagenocrinoidea fam. gen. et sp. indet...
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Journal Article
Journal: PALAIOS
Published: 01 July 2012
PALAIOS (2012) 27 (7): 465–480.
... to species level based on radial plate morphology, and Celonocrinus and Triceracrinus radials could be identified to genus. Members of the cladid family Pirasocrinidae could be distinguished from other families, but only Stenopecrinus planus and Triceracrinus could be identified to genus or species...
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Journal Article
Published: 01 September 2007
Journal of Paleontology (2007) 81 (5): 951–965.
... are more cuneate than in all other species of the genus. The genus is questioned because it is uncertain whether the arms branch again distally. Family Pirasocrinidae Moore and Laudon, 1943 Family Aesiocrinidae new family Aesiocrinus Miller and Gurley, 1890...
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