Cheirolepidiaceae is an extinct family of conifers. They first appeared in the Triassic, and were widespread during most of the Mesozoic era. They are united by the possession of a distinctive pollen type assigned to the form genus . The name Frenelopsidaceae (as a separate family) or "frenelopsids" has been used for a group of Cheirolepidiaceae with jointed stems, thick internode cuticles, sheathing leaf bases and reduced free leaf tips. The leaf morphology has been noted as being similar to that of halophyte Salicornia. Several members of the family appear to have been adapted for semi-arid and coastal settings, with a high tolerance of saline conditions. Cheirolepidiaceae disappeared from most regions of the world during the Cenomanian-Turonian stages of the Late Cretaceous, but reappea
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| - Cheirolepidiaceae (en)
- Cheirolepidiaceae (de)
- Cheirolepidiaceae (fr)
- Cheirolepidiaceae (it)
- Cheirolepidiaceae (ru)
- Хейролепідієві (uk)
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| - Die Cheirolepidiaceae sind eine ausgestorbene Gruppe der Koniferen (Coniferales). Sie sind morphologisch recht vielfältig, gemeinsames Merkmal ist der Pollentyp, der als Formgattung Classopollis bezeichnet wird. Besonders häufig waren ihre Vertreter im Mesozoikum in tropischen und subtropischen Klimaten. (de)
- Les Cheirolepidiaceae constituent une famille éteinte de l'embranchement ou division des Conifères. (fr)
- Le cheirolepidiacee (Cheirolepidiaceae) sono una famiglia di piante estinte, appartenenti alle conifere. Vissero tra il Triassico e il Giurassico (235 - 150 milioni di anni fa) e furono un'importante componente della flora del Mesozoico. (it)
- Cheirolepidiaceae (лат.) — семейство вымерших хвойных растений порядка Сосновые, произраставших в течение мезозойской эры (251,9—66,0 млн лет назад). Представители семейства по внешнему виду напоминали современных кипарисовых. Некоторые виды семейства, как считается, могли опыляться насекомыми, такими как скорпионницы. (ru)
- Хейролепідієві (Cheirolepidiaceae) — викопна родина хвойних рослин порядку соснові (Pinales), що існувала протягом мезозойської ери (252-65 млн років тому). Представники родини за зовнішнім видом нагадували сучасних кипарисових (Cupressaceae). Деякі види, як вважається, були першими хто використовував комах для запилення. Першими запилювачами, як відомо, були скорпіонові мухи. (uk)
- Cheirolepidiaceae is an extinct family of conifers. They first appeared in the Triassic, and were widespread during most of the Mesozoic era. They are united by the possession of a distinctive pollen type assigned to the form genus . The name Frenelopsidaceae (as a separate family) or "frenelopsids" has been used for a group of Cheirolepidiaceae with jointed stems, thick internode cuticles, sheathing leaf bases and reduced free leaf tips. The leaf morphology has been noted as being similar to that of halophyte Salicornia. Several members of the family appear to have been adapted for semi-arid and coastal settings, with a high tolerance of saline conditions. Cheirolepidiaceae disappeared from most regions of the world during the Cenomanian-Turonian stages of the Late Cretaceous, but reappea (en)
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| - Turutanova-Ketova 1963 (en)
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| - Pararaucaria collinsonae.png (en)
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| - Leafy shoot of Tomaxellia showing details of epidermis and stomata (en)
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| - * †Brachyoxylon
* Cheirolepis
* †Classopollis
* †Classostrobus
* †Cupressinocladus
* †Dicheiropollis
* †Frenelopsis
* †Hirmeriella
* †Pararaucaria
* †Pseudofrenelopsis
* †Watsoniocladus (en)
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| - Die Cheirolepidiaceae sind eine ausgestorbene Gruppe der Koniferen (Coniferales). Sie sind morphologisch recht vielfältig, gemeinsames Merkmal ist der Pollentyp, der als Formgattung Classopollis bezeichnet wird. Besonders häufig waren ihre Vertreter im Mesozoikum in tropischen und subtropischen Klimaten. (de)
- Cheirolepidiaceae is an extinct family of conifers. They first appeared in the Triassic, and were widespread during most of the Mesozoic era. They are united by the possession of a distinctive pollen type assigned to the form genus . The name Frenelopsidaceae (as a separate family) or "frenelopsids" has been used for a group of Cheirolepidiaceae with jointed stems, thick internode cuticles, sheathing leaf bases and reduced free leaf tips. The leaf morphology has been noted as being similar to that of halophyte Salicornia. Several members of the family appear to have been adapted for semi-arid and coastal settings, with a high tolerance of saline conditions. Cheirolepidiaceae disappeared from most regions of the world during the Cenomanian-Turonian stages of the Late Cretaceous, but reappeared in South America during the Maastrichtian, the final stage of the Cretaceous, increasing in abundance after the K-Pg extinction and being a prominent part of the regional fauna during the Paleocene, before going extinct. Some species are thought to have been the first plants to be insect pollinated as they occur in association with extinct pollinating scorpionflies. The family name Hirmeriellaceae is a junior synonym of Cheirolepidiaceae. In 2020, it was suggested that Hirmeriellaceae was the valid name for the family, with Cheirolepidiaceae being invalid. (en)
- Les Cheirolepidiaceae constituent une famille éteinte de l'embranchement ou division des Conifères. (fr)
- Le cheirolepidiacee (Cheirolepidiaceae) sono una famiglia di piante estinte, appartenenti alle conifere. Vissero tra il Triassico e il Giurassico (235 - 150 milioni di anni fa) e furono un'importante componente della flora del Mesozoico. (it)
- Cheirolepidiaceae (лат.) — семейство вымерших хвойных растений порядка Сосновые, произраставших в течение мезозойской эры (251,9—66,0 млн лет назад). Представители семейства по внешнему виду напоминали современных кипарисовых. Некоторые виды семейства, как считается, могли опыляться насекомыми, такими как скорпионницы. (ru)
- Хейролепідієві (Cheirolepidiaceae) — викопна родина хвойних рослин порядку соснові (Pinales), що існувала протягом мезозойської ери (252-65 млн років тому). Представники родини за зовнішнім видом нагадували сучасних кипарисових (Cupressaceae). Деякі види, як вважається, були першими хто використовував комах для запилення. Першими запилювачами, як відомо, були скорпіонові мухи. (uk)
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